Needle roller bearings are a type of roller bearing that contains small cylindrical rollers. These rollers resemble miniature vials in appearance. Similar to other roller bearings elements, needle roller bearings are made of needle rollers, a cage and an outer raceway. Needle roller bearings are unique to the roller bearing family because they have a larger surface area that touches the bearing’s outer surface. Depending on the direction of the load being supported, these bearings can support either radial or axial loads. They are also able to support extreme oscillation and rigidity requirements.
Types Of Needle Roller Bearings
Needle roller bearings are available in a wide variety of configurations, with each type suitable for different applications. Here are four types of needle roller bearings:
- Cage and needle roller assemblies ‒ used in applications that need improved rigidity and a high load carrying capacity.
- Drawn cup needle roller bearings ‒ used in compressed and efficient bearing arrangements. The outer rings of these bearings are thin-walled, and have a low sectional height, making them perfect for an arrangement that cannot accommodate a housing bore.
- Solid needle roller bearings ‒ used in applications that require high loads
- Thrust needle roller bearings ‒ used in applications that require accommodation of heavy axial and shock loads.
Needle Roller Bearing Applications
From robots to paper towel dispensers, needle roller bearings are found in wide variety of everyday items. Just some of these items include:
- Disc brakes
- Drive shafts
- Transmission systems
- Air compressors
- Gear boxes
- Fuel injectors
- Industrial machinery (such as assembly line robots)
- Power tools
- Fitness machines
- Paper towel dispensers
- Luggage conveyor belts
- Fishing reels
- Photocopying machine
- Leaf blowers
- Jet ski’s
- Scooters and quad bikes
Bearing Centre carries a wide range of quality assured, engineering related components, including needle roller bearings. To find out more about our bearing offerings, visit our product page, or get in touch with us if you have any engineering component related questions.