Needle Roller Bearings
Needle roller bearings sometimes called needle bearings use long and narrow cylindrical rollers that sometimes exceed JIS/ISO size ranges. They are categorized as thrust or radial bearings based on which load direction they support. Radial types include drawn-cup and solid types, as well as application-specific track rollers Thrust needle and thrust roller bearings respond to axial load needs
Typical Structure
There are four main types of needle roller bearings, including caged roller, drawn cup, precision race and thrust roller. Their typical structure includes an inner race or just a shaft, a cage to contain the needle rollers and an outer raceway. Selecting the correct type of needle roller bearing for your particular application depends on a variety of factors such as the necessary load capacity, load type and speed, as well as the expected temperature limits, lubrication requirements and service life.
Needle Roller Bearings Type
- Needle roller bearing with cage
- Connecting rod needle roller bearings with cag
- Drawn cup needle roller bearings
- Solid type needle roller bearings
- Separable solid type needle roller bearings
- Clearance adjusting needle roller bearings
- Thrust roller bearings
Advantages
- More noisy at very high speeds.
- Low resistance to shock loading.
- More initial cost.
- Design of bearing housing complicated
Application
Needle roller bearings are most commonly used in automobile, agricultural and construction components, including compressors, transmissions, gearboxes, pumps, torque converters, suspensions, U-joints and rocker-arm pivots. They’re also found in domestic appliances such as portable power tools, pump clutches and spindles
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Precision Needle Roller Ball Bearings GCr15 100Cr6 Oil Grease Lubrication Images
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