Lubrication System For Taper Roller Bearings Provided For Gear Transmissions

Abstract: A lubrication system for taper roller bearings has an input shaft (1) provided in an input shaft cover (2) and supported by a set of input shaft bearings (3). A main shaft (4) assembled in connection with the input shaft (1), and supported by a front casing (5) and a set of tapper roller spigot bearings (6) connecting and supporting the main shaft (4) and the input shaft (1). The input shaft (1) has a tapered inner section which acts as the outer race for the tapper roller spigot bearing (6) and support the main shaft (4). The input shaft cover (2) and front casing (5) are assembled to cover the input shaft (1), main shaft (4) and a lay shaft (7). The front casing (5) has an oil catching groove (8) which catches the oil splashed from the input shaft (1). The input shaft has axial and radial oil holes (9) drilled into the root of the input shaft gear (10). The oil from the oil catching groove (8) in the front casing (5) is circulated towards the input shaft cover (2), and passed over to the path (11) between the input shaft cover, oil seal and input shaft. The oil is further carried over to the input shaft (1) via the axial holes (9) drilled to pass the oil to the spigot bearings (6) before reaching the input shaft bearing (3). [Figure 1]

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