TECHNICAL FIELD [0001] The present subject matter described herein in general relates to a vehicle, more particularly but not exclusively for a wheel assembly for the vehicle.
BACKGROUND
5 [0002] Conventionally, as already known in the art, there has been known a wheel assembly including wheel rim supported circumferentially around at least one rotating member. A number of spokes/arms extend out of the at least one rotating member to support the wheel rim. A wheel shaft is rigidly supported inside the wheel hub sub-assembly. The wheel shaft is configured to rotatably support the at least one
0 rotating member. The at least one rotating member include a wheel hub sub-assembly and a drum-sprocket sub-assembly. The wheel hub-sub assembly provides the functionality of rotating to the wheel assembly. The wheel hub sub-assembly receives the functionality of rotating from the drum-sprocket sub-assembly. The drum-sprocket sub-assembly includes a sprocket member configured to support an end of a
5 driving member including one end attached to a power generation unit. The driving member attached to the sprocket member is responsible for driving of a drum member of the drum-sprocket sub-assembly. Furthermore, the wheel shaft supports one or more bearing sub-assembly. In particular, an outer diametrical surface of the one or more bearing sub-assembly rotatably supports the at least one rotating member
!0 around the wheel shaft.
BRIEF DESCRIPTION OF THE DRAWINGS
|0003] The above and other features, aspects and advantages of the subject matter 15 will be better understood with regard to the following description, appended claims, and accompanying drawings, where: [0004] Fig. 1 illustrates a left side view of a motorcycle 100.

|0005| Fig. 2 illustrates an exploded view of a wheel assembly according to an embodiment of the present invention.
[0006| Fig. 3 illustrates a sectional view of the wheel assembly in an assembled condition taken along a PQ axis in the Fig. 2. 5 [0007] Fig. 4 illustrates a detailed view of a portion of the section of the wheel assembly as shown in Fig. 3.
[0008] Fig. 5 illustrates a detailed view of a cross-sectional view of the wheel-hub sub-assembly of the wheel assembly. [0009| Fig. 6 illustrates a sectional view of an exploded view of the wheel-hub sub-
10 assembly.
[00010] Fig. 7 illustrates, an exploded view of a part of the drum-sprocket sub-assembly.
[00011} Fig. 8 illustrates a sectional view of the drum-sprocket sub-assembly according to an embodiment of the present invention.
15 [00012] Fig. 9 illustrates a perspective view of a first insert member according to an embodiment of the present invention.
[00013| Fig. 10 illustrates a perspective view of a second insert member according to an embodiment of the present invention.
DETAILED DESCRIPTION
20 [00014] Conventionally, the at least one rotating member rotatably supported around the wheel shaft are made of metal, for example aluminium alloy. The one or more bearing sub-assembly that rotatably supports the at least one rotating member are made of metal, for example steel. The one or more bearing sub-assembly made of steel material have a higher melting point as compared to the wheel-hub sub-
25 assembly made of aluminium. Any impact due to loads as experienced by the wheel-hub sub-assembly is directly transferred to the one or more bearing sub-assembly. Further, heat generation also occurs inside the at least one rotating member due to continuous application of brakes. The motorcycle traversing on bad roads is more

susceptible to frequent application of brakes. Further, if there is heavy loading due to payload in the vehicle and along with heavy loading if frequent brake application occurs, then the heat generated inside the at least one rotating member increases as compared to normal condition of brake application. The heat so generated increases 5 with more application of brakes and also with severe road conditions.
[00015] The heat generated inside the at least one rotating member tends to affect the surrounding parts. For example, at higher temperatures generated inside the wheel-hub sub-assembly, the aluminium wheel-hub sub-assembly with lower melting point tends to deform. The deformation occurs due to radial movement of the one or
10 more bearing sub-assembly during motorcycle running condition. The one or more bearing sub-assembly undergoes radial movement during heavy payload on the motorcycle. Having experiencing heavy payload on the motorcycle and in addition traversing on bad roads as well, the wheel shaft tends to undergo movement resulting in displacement of surrounding parts supported by the wheel shaft. One such effect is
15 radial movement of the one or more bearing sub-assemblies. The radially moving one or more sub-bearing assemblies continuously hit the closely assembled and immediately available at least one rotating member including the wheel-hub sub¬assembly and the drum-sprocket sub-assembly. The aluminium wheel-hub sub¬assembly and the drum-sprocket sub-assembly that are already experiencing higher
20 temperatures due to continuous brake application tend to easily deform due to continuous hitting occurring from the radial movement of the one or more bearing sub-assemblies. The so deformed at least one rotating member no more function normally, failing to keep the one or more bearing sub-assembly in their regular location. In particular, the deformed at least one rotating member create a gap of
25 about 20-50 microns therebetween. Such a gap created is more than enough for the one or more bearing sub-assemblies to slip out and fall off from their regular place. [00016| In particular, the excess heat is generated inside the wheel-hub sub-assembly due to excessive application of the brakes. The heat generated inside a drum

due to application of the brakes inside the wheel-hub sub-assembly is transferred to the drum-sprocket sub-assembly connected to the wheel-hub sub-assembly. The heat so transferred will have the same effects on the one or more bearing sub-assemblies inside the drum of the drum-sprocket sub-assembly as in the wheel-hub sub-
5 assembly, resulting in slipping out of the one or more bearing sub-assembly.
|00017] Such a displacement of the one or more bearing sub-assemblies from their regular location leads to serious irreversible impacts, being detrimental to life of the motorcycle users including the rider and the one or more pillion riders. Further, the wheel assembly of the motorcycle breaks abruptly due to which, the motorcycle may
0 experience a road accident causing serious troubles to the user.
[00018] Therefore, there is a need to prevent the loosening of the one or more ball bearings in the wheel assembly, to prevent the one or more, ball bearings from slipping out of the at least one rotating member. [00019] The heat generated due to continuous brake application can be prevented or
5 to an extent reduced by eliminating direct contact of the surfaces between the at least one rotating member and the one or more bearing sub-assembly. The same can be achieved by providing an intermediate member to isolate the at least one rotating member and the one or more bearing sub-assembly. However, it is not desirable to have a separate lose part inside the wheel assembly. Because, the wheel assembly
10 rotating at higher speeds include a number of parts rotating inside and around the wheel shaft. The separate lose part so disposed is more prone to ease out of initial assembled condition and eventually slip out of its original position causing undesirable damage to the surrounding parts and eventually affecting the normal functionality of the wheel assembly. Therefore, the at least one rotating member and
15 the one or more bearing sub-assembly cannot be successfully isolated without having any contact surface with each other by disposing a lose part therebetween. |00020| Therefore, there is a need to reduce the effect on the one or more bearing sub-assembly from the heat generated inside the at least one rotating member by

disposing an at least one insert member therebetween, which contributes to quicker heat dissipation through its surface and allows the heat to be passed on to easily from the wheel hub-sub assembly to the surrounding parts.
[00021] However, it is already known in the art, wherein an insert member is 5 disposed between a wheel-hub sub-assembly and the one or more bearing assembly around the wheel shaft. The insert member isolates the one or more bearing assembly from being in direct contact with the wheel-hub sub-assembly, to protect the wheel-hub sub-assembly from being deformed due to movement of the one or more bearing assembly. However, a portion of the insert member disposed around the one or more
10 bearing assembly left exposed to the external environment. The so exposed portion of the insert member undergoes corrosion and deteriorates over a period of time and failing to effectively protect the wheel-hub sub-assembly.
(00022] Furthermore, the contact surface between the wheel-hub sub-assembly and the insert member is less due to the exposed portion of the insert member. The less
15 contact surface therebetween does not provide good bonding/locking. Eventually, under high torque application conditions, the insert member might slip out due to lack of good locking. This abrupt slipping out of the insert member results in sudden stoppage of the vehicle anywhere on the roads during vehicle riding condition. Furthermore, the insert member is attached to the wheel-hub sub-assembly using one
20 or more lugs only. The one or more lugs are not sufficient enough for proper and
rigid locking of the insert member with the wheel-hub sub-assembly. Furthermore,
the insert member with one or more lugs is still not sufficient to effectively dissipate
the heat generated inside the wheel-hub sub-assembly. Therefore, the heated up
■ wheel-hub sub-assembly with continuous hitting from the one or more bearing
25 assembly is still prone to deformation causing the one or more bearing assembly to slip out of the assembled condition from inside the wheel-hub sub-assembly.

[00023) Therefore, a more effective wheel assembly including more stable assembly between the wheel-hub sub-assembly and the one or more bearing assembly is required.
[00024] According to an embodiment of the present invention, the radial movement 5 of the one or more bearing sub-assembly is prevented by arresting the movement of the one or more bearings during motorcycle running condition having heavy payload on the motorcycle. The radial movement of the one or more bearing sub-assembly is arrested by providing at least one insert member around at least a portion of the one or more bearing sub-assembly. Furthermore, the at least one insert member prevents
10 the axial movement of the one or more bearings from hitting the closely disposed one or more rotating members. Thereby preventing deformation of the at least one rotating member. Further, by preventing the deforming of the at least one rotating member, the one or more bearing sub-assembly are kept in place and any mishap that may occur is prevented.
15 (00025] According to an embodiment of the present invention, at least one insert member is disposed between the one or more bearing sub-assembly disposed around at least a portion of the wheel shaft, and the wheel-hub sub-assembly. The at least one insert member does not allow the one or more bearing assembly to move from its normal position. Only a rotational movement of an outer diametrical surface of the
20 one or more bearing assembly along with subsequent rotational movement of the wheel-hub sub-assembly is allowed.
[00026] According to an embodiment of the present invention, the heat generated in the wheel-hub sub-assembly due to frequent application of brakes is prevented from transferring to the one or more bearing sub-assembly. The at least one insert member
25 prevents the heat generated in the wheel-hub sub-assembly from transferring to the one or more bearing assembly. The at least one insert member is made of material with higher melting point, for example 1425- 1540 degree centigrade, so that the heat absorbed by the aluminium, with a melting point of 660 degree centigrade, wheel-hub

sub-assembly does not affect the at least one insert member made of steel material or the like. Therefore, the one or more bearing assembly remain unaffected by allowing them to perform with stability and does not result in abrupt failure due to slippage from the normal position. Thereby, providing a comfortable and reliable riding to the 5 rider on the motorcycle.
[00027| According to another embodiment of the present invention, at least one insert member is disposed between the drum-sprocket sub-assembly and the one or more bearing assembly. The heat generated in the wheel-hub sub-assembly is transferred to a closely disposed drum member of the drum-sprocket sub-assembly.
10 The heated up drum member is prevented from affecting the one or more bearing assembly by providing the insert member therebetween. The insert member has a higher melting point, for example 1425- 1540 degree centigrade, as compared to the material made up of drum member. For example, the insert member is made of steel material or the like having a higher melting point as compared to the drum member
15 made of aluminium with a melting point of 660 degree centigrade.
[00028] According to another embodiment of the present, invention, the insert member is made of cast iron.
|00029] According to an embodiment of the present invention, the at least one inset member is a cylindrical and elongated structure. The at least one insert member
20 includes first end and a second end. The first end and the second end each include an inner diametrical surface capable of supporting at least a portion of the one or more bearing assembly. Further, the at least one insert member includes a body configured to be attached to at least a portion of the wheel-hub sub-assembly of the wheel assembly. Further, the at least one insert member includes a first inset outer
25 diametrical surface configured with one or more outwardly protruding serrations. The one or more serrations are configured to mate with equivalent one or more inwardly formed serrations. The one or more outwardly protruding serrations are provided to prevent displacement or slipping out of the at least one insert member from the

wheel-hub sub-assembly when the wheel assembly is rotating under greater speeds. Therefore, a stable functioning of the insert member ensures smooth rotation of the outer diametrical surface of the one or more bearing assembly. Further, the one or more outwardly protruding serrations are threads formed on the at least one insert 5 member. The one or more serrations provide positive locking of the at least one insert member with the at least one rotating member.
(00030) Furthermore, according to an embodiment of the present invention, the at least one insert member includes an insert outer diametrical surface that is completely covered by a member-inner diametrical surface. This ensures that no portion of the
10 insert is exposed to the external environment and the at least one insert member is completely protected from corrosion and other environmental factors. Furthermore, since complete portion of the insert outer diametrical surface of the at least one insert member is attached to the member-inner diametrical surface, the contact area therebetween is more resulting in good bonding surface therebetween.
15 [00031] Furthermore, the insert outer diametrical surface includes one or more serrations in the form of one or more threads accounts to increased surface area of the at least one insert member, which accounts to quicker heat dissipation. The quicker heat dissipation does not allow the heat generated inside the at least one rotating member to be trapped for a longer period of time, instead the bigger surface area due
20 to the one or more serrations allow the heat to be dissipated elsewhere to the surrounding parts away from the at least one rotating member. Therefore, the deformation of the at least one rotating member is prevented and the one or more bearing sub-assembly are kept in their desired location and a stable and reliable working of the wheel assembly is achieved.
25 [000321 According to another embodiment of the present invention, the at least one insert member is a cylindrical structure. The at least one inset member includes a second insert outer diametrical surface comprising one or more protrusions configured to be mated with equivalent receiving one or more portions in the drum

member of the drum-sprocket sub-assembly. The one or more protrusions are equidistantly placed on at least a portion of the second insert outer diametrical surface. The one or more protrusions are provided to prevent displacement or slipping out of the at least one insert member from the drum-sprocket sub-assembly when the 5 wheel assembly is rotating under greater speeds.
[00033| According to another embodiment of the present invention, the one or more protrusions are placed at a predetermined distance from one another. |00034| According to an embodiment of the present invention, the at least one insert member is attached through a process of casting to the one or more rotating members.
10 By casting the at least one insert member to the one or more rotating members, the number of parts inside the wheel-hub sub-assembly is reduced considerately. Further, due to elimination of a detachable part, for example, in the present case, the at least one insert member, is not prone to loosen out of its normal position. Thereby providing a reliable functionality.
15 [00035] Other advantages and more clear understanding of the invention would be evident from the following description of the figures as given below. (000361 Fig- 1 illustrates a left side view of a motorcycle 100. The motorcycle 100 includes a frame structure 109, a front fork 107 mounted to the front of the frame structure 109 and connected to a front wheel 108, an engine assembly 110 supported
20 by the frame structure 109 and a rear wheel 112 supported by the rear portion of the frame structure 109.
[00037] In the illustrated motorcycle 100, a head pipe 105 supports a steering shaft (not shown) rotatably in a certain range. The front fork 107 is supported pivotally by the head pipe 105. In an upper portion of the head pipe 105, a handlebar assembly
25 101 is rotatably integrally connected to the steering shaft. A front wheel 108 is journaled to a lower end of the front fork 107 and the front wheel 108 is rotated in a certain range by steering the handlebar assembly 101.

(00038] A front fender 106 is arranged on the front fork 107 to cover an upper
portion of the front wheel 108. A rear wheel 112 is journaled on the rear end of the
frame structure 109.
[00039] In a front portion of the frame structure 109 a fuel tank 102 is arranged 5 immediately behind the handle bar 101. A seat assembly 103 is placed behind the
fuel tank 102.
|00040| An engine assembly 110 is supported to the frame structure 109 by being
suspended in a front lower portion of the frame structure 109. The engine assembly
110 is equipped with an exhaust system and includes an exhaust pipe (not shown) 10 connected to the engine and a muffler (not shown) connected to the exhaust pipe. The
muffler extends rearwards along the right side of the rear wheel 112.
[00041] Furthermore, a swing arm (not shown) is swingably connected to a rear
lower portion of the frame structure 109 and the swing arm extends rearwards. The
rear wheel 112 is rotatably supported at a rear end of the swing arm. At least one 15 shock absorber 113 is supported by the swing arm 104 at one end. Power from engine
assembly 110 suspended in a front lower portion of the frame structure 109 is
transmitted to the rear wheel 112 through a power drive mechanism, such as a drive
chain, so as to drive and rotate the rear wheel 112.
[00042] Further, for handling the vehicle and for a pillion rider to hold while seated 20 on the vehicle, a pillion handle 111 is provided at the rear end of the seat assembly
103. For safety purposes, a tail lamp 114 at the rear end of the vehicle and a
headlamp 115 at the front end of the vehicle are provided.
[00043] A front fender 106 is provided above the front wheel 108 to avoid the said
vehicle and its occupants from being splashed with mud. Likewise, a rear fender 116 25 is placed above the rear wheel 112 and to the outer side in the radial direction of rear
wheel 112. Rear fender 116 inhibits rainwater or the like from being thrown up by
rear wheel 112.

[00044] Fig. 2 illustrates an exploded view of a wheel assembly according to an embodiment of the present invention. The wheel-hub sub assembly includes a wheel rim 202, a wheel shaft (not shown), a plurality of connecting members 203, at least one rotating member 201, 302 rotatably supported around at least a portion of the 5 wheel shaft. The wheel assembly 108, 112 includes the wheel rim 202 disposed circumferentially around at least a portion of a wheel-hub sub-assembly 201. The plurality of connecting members 203 are disposed between the wheel rim 202 and the wheel-hub sub-assembly 201. At least a portion of the wheel rim 202 is capable of receiving a tyre (not shown) there within. The wheel rim 202 is kept in a desired
10 shape around the wheel-hub sub-assembly 201 by the plurality of arms 203. Further, the at least one rotating member 201, 302 includes a drum-sprocket sub-assembly 302 functionally coupled to at least one face of the wheel-hub sub-assembly 201. The drum-sprocket sub-assembly 302 includes at least one sprocket member 305 configured to provide rotational motion to the wheel assembly 108,112.
15 [00045] According to an embodiment of the present invention, the wheel assembly 108, 112 is the front wheel 108. According to another embodiment of the present invention, the wheel assembly 108,112 is the rear wheel 112.
[00046] The wheel assembly 108, 112 is for vehicles including scooters, motorcycles, mopeds, three-wheelers and the like.
20 [00047] According to an embodiment of the present invention, the wheel assembly 108, 112 is an alloy wheel including the plurality of connecting members 203 that are one of a plurality of arms and a plurality of spokes.
[00048] Fig. 3 illustrates a sectional view of the wheel assembly in an assembled condition taken along a PQ axis in the Fig. 2. According to an embodiment of the
25 present invention, the wheel assembly 108, 112 includes the wheel rim 202 configured to receive at least a portion of a tubular member 304 configured to be filled with air. The tubular member 304 is disposed inside the tyre 303. The tyre 303 and the wheel rim 202 are supported around the wheel-hub sub-assembly 201 through

the plurality of connecting members 203. The plurality of connecting members 203 in the figure are the plurality of arms. Further, the one or more rotating members 201, 302 are rotatably supported around at least a portion of the wheel shaft 301. The wheel shaft 301 is a stationary member. However, the wheel shaft 301 rotatably 5 supports at least a portion of the wheel-hub sub-assembly and the drum-sprocket sub¬assembly 302.
[00049| Fig. 4 illustrates a detailed view of a portion of the section of the wheel assembly as shown in Fig. 3. The one or more rotating members 201, 302 are rotatably supported around the wheel shaft 301 by at least a portion of the one or
10 more bearing sub-assembly 402 disposed circumferentially around at least a portion of the wheel shaft 301. According to an embodiment of the present invention, the one or more bearing assembly 402 includes plurality of balls 402a rotatably supported within at least one bearing housing 402b. Further, the one or more rotating members 201, 302 includes at least one insert member 204, 403 sandwiched between at least a
15 portion of the one or more rotating members 201, 302 and the one or more bearing assembly 402. The at least one insert member 204, 403 isolates the one or more bearing assembly 402 from being in direct contact with the one or more rotating members 201, 302 and further, contributes to quicker heat dissipation.occurring inside'the one or more rotating members 201,302 into other surrounding parts.
20 [00050) According to an embodiment of the present invention, the at least one insert member 204, 403 is encasted with the one or more rotating members 201, 302. The at least one insert member 204, 403 made of steel material or the like is capable of efficiently prevent the transfer of heat that is transferred to the one or more rotating members 201, 302 due to frequent application of brakes.
25 [00051] According to an embodiment of the present invention, one or more bearing assembly 402 are disposed between the wheel-hub sub-assembly 201 and the one or more bearing assembly 402. One face of the wheel-hub sub-assembly 201 is covered by a brake panel member 401. The other face of the wheel-hub sub-assembly 201 is

covered by the drum-sprocket sub-assembly 302. The drum-sprocket sub assembly 302 includes the at least one insert member 204, 403 disposed between at least a portion of the drum member 302a and the one or more bearing assembly 402. [00052] According to an embodiment of the present invention, the insert outer 5 diametrical surface 204OD, 403OD is completely attached to a member-outer diametrical surface (not shown) of the at least one rotating member 204, 403. Therefore, a large surface area therebetween provides good locking to prevent rotation of the at least one insert member 204, 403 and also completely protects the at least one insert member 204, 403 from external environmental factors.
10 [00053| Fig. 5 illustrates a detailed view of a cross-sectional view of the wheel-hub sub-assembly of the wheel assembly. According to an embodiment of the present invention, the wheel-hub sub-assembly 201 includes two bearing assembly 402, each of the bearing assembly 402 separated by a spacer member 205. The spacer member 205 keeps the two bearing assembly 402 in place by preventing axial movement if
15 any. A first insert member 204 of the at least one insert member 204, 403 includes two ends capable of receiving at least one bearing assembly of the one or more bearing assembly 402. In particular, an outer diametrical surface of the one or more bearing assembly 402 is completely covered by the first insert member 204. The outer diametrical surface of the one or more bearing assembly 402 is capable of undergoing
20 rotational movement and transfers the rotational movement to the wheel-hub sub-assembly 201.
[00054] According to an embodiment of the present invention, the first insert member 204 is a cylindrical member and includes an inner diameter and an outer diameter varying approximately in the range of 30-50mm. The range of 30-50mm of
25 the inner diameter and the outer diameter of the first insert member 204 is optimally determined such that the range above that would result in interfering of the first insert member 204 with the surrounding parts inside the wheel hub sub-assembly, for

example, the first insert member 204 with dimensions beyond the above mentioned range would interfere with a spring of a brake shoe.
[00055] Fig. 6 illustrates a sectional view of an exploded view of the wheel-hub sub-assembly. According to an embodiment of the present invention, the at least one 5 insert member 204 includes one or more serrations 204c on a first insert outer diametrical surface. Further, a hub inner diametrical surface 201 ID of the wheel-hub sub-assembly 201 includes one or more receiving portions 201a configured to receive the one or more serrations 204c. The one or more serrations 204c provides a reliable and stable interlocking of the first insert member 204 with the hub inner diametrical
10 surface 201 ID of the wheel-hub sub-assembly 201. Therefore, even if the wheel assembly is rotating at greater speeds, the one or more serrations 204c ensure that the first insert member 204 does not loosen and slip out of its original position. [00056] Fig. 7 illustrates an exploded view of-a part of the drum-sprocket sub¬assembly. The drum-sprocket sub-assembly 302 includes the at least one bearing
15 assembly 402 comprising a bearing inner diametrical surface 402ID capable of abutting against the wheel shaft (not shown) and bearing outer diametrical surface 402OD capable of being rotatably attachable to a second insert inner diametrical surface 403ID of a second insert member 403 of the at least insert member 204, 403. The second insert member 403 further comprises a second insert outer diametrical
20 surface 403OD attached to a drum member inner diametrical surface 302ID of an at least one member inner diametrical surface 201II), 302ID of the drum member 302a. The drum member 302a is capable of undergoing rotational movement along with the . second insert member 403 and the bearing outer diametrical surface 402OD. |00057| According to an embodiment of the present invention, the second insert
25 member 403 is encasted with the inner diametrical surface 302ID of the drum member 302a. The second insert member 403 prevents direct contact between the drum member inner diametrical surface 302ID of the drum member 302a and the second insert outer diametrical surface 403OD. Thereby, preventing heat transfer

therebetween. Therefore, a more stable and reliable functioning of the one or more bearing assembly 402 is achieved.
[00058] According to another embodiment of the present invention, the second insert member 403 is detachably attached to the inner diametrical surface 302ID of the 5 drum-sprocket sub-assembly 302.
(00059| Fig. 8 illustrates a sectional view of the drum-sprocket sub-assembly according to an embodiment of the present invention. The drum-sprocket sub¬assembly 302 includes a drum member 302a, the sprocket member 305 attached to the drum member 302a. The sprocket member 305 is attached to the drum member
10 302a through one or more attaching members 501. The drum member 302a is capable of accommodating one or more bearing assembly 402 comprising the bearing housing 402b accommodating plurality of balls 402a. Further, the drum-sprocket sub¬assembly 302 comprises the second insert member 403 disposed between the one or more bearing assembly 402 and the drum member 302a. According to an
15 embodiment of the present invention, the second insert member 403 is encasted with the inner diametrical surface of the drum member 302a.
[00060| Fig. 9 illustrates a perspective view of a first insert member according to an embodiment of the present invention. The first insert member 204 is an elongated cylindrical member. The first insert member 204 includes two ends 204a, 204b that
20 are open-ended. The two ends 204a, 204b include a first insert inner diametrical surface 204ID capable of receiving at least a portion of the one or more bearing assembly (not shown). A first insert outer diametrical surface 204OD is configured to be attached with at least a portion of the wheel-hub sub-assembly (not shown). Further, the region in between the two ends 204a, 204b includes one or more
25 serrations 204c disposed on the first insert outer diametrical surface 204OD. The one or more serrations 204c provide efficient attachment of the first insert member 204 with the wheel-hub sub-assembly (not shown).

|00061| According to an embodiment of the present invention, the first insert member 204 includes a length L varying approximately in the range of 70-100mm. |00062| According to .an embodiment of the present invention, the first insert member 204 includes an inner diameter and outer diameter varying in the range of 5 30-50mm.
[00063J Fig. 10 illustrates a perspective view of a second insert member according to an embodiment of the present invention. The second insert member 403 is a cylindrical member comprising one or more protrusions 403a on the second insert outer diametrical surface 403OD. The second insert member 403 includes the second
10 insert inner diametrical surface 403ID capable of rotatably supporting one or more bearing assembly (not shown). The one or more protrusions 403a are equidistantly placed from one another. According to another embodiment of the present invention, the one or more protrusions 403a are disposed at a predetermined distance from one another. According to the present-embodiment, the one or more protrusions 403a are
15 disposed on a peripheral edge of the second insert outer diametrical surface 403OD. [00064| According to an embodiment of the present invention, the second insert member 403 includes an inner diameter and outer diameter varying in the range of 30-50mm. [00065| Although the subject matter has been described with reference to specific
20 embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the subject matter, will become apparent to persons skilled in the art upon reference to the description of the subject matter. It is therefore contemplated that such modifications can be made without departing from the spirit or scope of the
25 present subject matter as defined.

We claim:
1. A wheel assembly (108,112) for a vehicle (100), said wheel assembly
(108,112) comprising:
a wheel rim (202);
5 at least one rotating member (201, 302) disposed centrally to said wheel rim
(202);
a wheel shaft (301) disposed centrally and co-axially to at least a portion of said at least one rotating member (201, 302), said wheel shaft (301) rotatably supports said at least one rotating member (201, 302);
10 one or more bearing sub-assembly (402) disposed abuttingly around at least a
portion of said wheel shaft (301) and disposed inside said at least one rotating member (201, 302), said one or more bearing sub-assembly (402) facilitate smooth rotation of said wheel assembly (108,112) around said wheel shaft (301);
15 wherein,
said at least one rotating member (201, 302) includes at least one insert member (204, 403) comprising an insert outer diametrical surface (201OD, 403OD) configured to be completely in contact with an member-inner diametrical surface (201 ID, 302ID) of said at least one rotating member
20 (201, 302), said at least one insert member (204, 403) is in contact with and
disposed around at least a portion of a bearing outer diametrical surface (402OD) of said one or more bearing sub-assembly (402), said at least one insert member (204, 403) rotatably supports said bearing outer diametrical surface (402OD) of said one or more bearing sub-assembly (402).
25 2. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said at least one rotating member (201, 302) includes a wheel hub sub-assembly (201) rotatably supported by said wheel shaft (301), said wheel hub sub-assembly (201) is configured to attachably include a first inert

member (204) attached to a hub inner diametrical surface (201ID) of said at
least one member inner diametrical surface (201 ID, 302ID).
3. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said at least one rotating member (201, 302) includes a drum-
5 sprocket sub-assembly (302) rotatably supported by said wheel shaft (301),
said drum-sprocket sub-assembly (302) is configured to attachably include a
second inert member (403) attached to a drum-member inner diametrical
surface (302ID) of said at least one member inner diametrical surface (201 ID,
302ID).
10 4. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said at least one insert member (204, 403) is made of a material selected from a group of metals including stainless steel, steel alloy, and cast iron.
5. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
15 wherein said first insert member (204) of said at least one insert member (204,
403) includes one or more serrations (204c) on at least a portion of a first insert outer diametrical surface (204OD) of said first insert member (204).
6. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said second insert member (403) includes one or more protrusions
20 (403a) on at least a portion of a second insert outer diametrical surface
(403OD) of said second insert member (403).
7. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said first insert member (204) includes a length (L) varying
approximately in the range of 70-100mm, inner diameter (ID) and an outer
25 diameter (OD) varying approximately in the range of 30-50mm.
8. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said first insert member (204) includes an inner diameter (ID) and an
outer diameter (OD) varying approximately in the range of 30-50mm.

9. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1,
wherein said at least one insert member (204, 403) is attached to said at least
one member-inner diametrical surface (20111), 3021D) of said at least one
rotating member (201, 302) by a method of casting.
5 10. The wheel assembly (108, 112) for a vehicle (100) as claimed in claim 1 and
claim 6, wherein said member inner diametrical surface (201 ID, 302ID) includes a hub inner diametrical surface (201 ID) comprising one or more receiving portions (201a) capable of receiving said one or more serrations (204c).
10