Quick Details
Type: Needle Brand Name: ASAHI, ASK, EASE, FAFNIR, FAG, FYH,... Bore Size: 28 mm
Outside Diameter: 45 mm Model Number: NA69/28 Precision Rating: P0-P6
Seals Type: other Number of Row: Double Row Place of Origin: Beijing China (Mainland)
Strecture: needle Type: roller bearing Quality: ISO9000:2001
MOQ: 10
Packaging & Delivery
Packaging Detail: international standard box
Delivery Detail: follow the contract by negotiate
Specifications
High Precision Needle Roller Bearing NA69/28
1.High precision
2.Low noise
3.OEM available
4.Various brands for choice
High Precision Needle Roller Bearing NA69/28
A needle roller bearing is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface.
Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of an inner race (or sometimes merely a shaft), a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race.
Needle bearings are suitable when the rotational speed is relatively low.