Beli bearing 6908 di monotaro.id

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

Deep groove ball bearings are available in single row and double row designs.Single row bearings are particularly suitable where:- high and very high speeds are required-the bearing arrangement must be operated with very low friction- very low running noise is required, without reducing the speed, load - carrying capacity and operating life of the bearing (Generation C) - high demands are made on the sealing of the bearing, without increasing heat generation or limiting the speed (Generation C)- the bearing position is to be designed particularly economically. Double row bearings can be considered for bearing arrangements where:- the load carrying capacity of single row deep groove ball bearings is no longer sufficient - axial loads in both directions and/or tilting moments must be supported in addition to radial loads - a high load carrying capacity is required and the design envelope available in a radial and axial direction is relatively small.

Drawn Cup Needle Roller Bearings. This bearing type is composed of an outer ring drawn from a thin steel plate by precision drawing, needle rollers and a cage assembled in the outer ring after the raceway surface thereof was hardened (A bearing marked with a suffix including M is subjected to heat-treatment after assembly). Of the bearings with outer ring, this bearing type is a bearing with the smallest section height which enables space-saving and cost-saving. Usually design is so made as to use a shaft as the direct raceway surface without using inner ring. The outer ring of this bearing type is of such a construction that the needle rollers and the cage are not separated from one another, so that the bearing is only press-fitted in a rigid housing with proper fit torque. Thus, this bearing type needs no snap ring, etc. to fix itself in axial direction and, in addition, is easy to handle.

Single row needle roller bearings without an inner ring consist of an outer ring with a needle roller and cage assembly. They are an excellent choice for compact bearing arrangements in applications where hardened and ground raceways can be provided on the shaft. The outer ring includes two non-separable closure rings that act as flanges to guide the bearing axially.