DESC:TIMER BELT POWER TRANSMISSION SYSTEM FOR A ROBOTIC ARM ,CLAIMS:1. A robotic arm (100) comprising:
a plurality of joint structures;
a plurality of motors, wherein each motor is for powering at least one joint structure;
a plurality of power transmission drive, each power transmission drive is for coupling at least one joint structure to a motor, each of the plurality of power transmission drive comprises:
at least one driving pulley coupled to a driving shaft of the motor,
at least one driven driven pulley coupled to a driven shaft of the at least one joint structure, and
an elongate endless member rotatably coupled to the driving pulley and the driven pulley.
2. The robotic arm (100) as claimed in claim 1, wherein the plurality of joint structures comprises a base joint, a shoulder joint, an elbow joint, a wrist joint, and an end effector.
3. The robotic arm (100) as claimed in claim 2, wherein the power transmission drive corresponding to the end effector comprises a pair of bevel gear.
4. The robotic arm (100) as claimed in claim 1, wherein the power transmission drive comprises a sub-set of tensioner pulley.
5. The robotic arm 100 as claimed in claim 4, wherein the sub-set of tensioner pulleys comprises a plurality of pulleys of different outside diameter.

6. The robotic arm (100) as claimed in claim 1, wherein each of the power transmission drives includes multi-stage pulley assembly.