Needle roller bearings
A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings' rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter.Like all bearings, they are used to reduce the friction of a rotating surface.
Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a greater load. They are also thinner, so they require less clearance between the axle and the surrounding structure.
Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
- 20 mm x 35 mm x 26 mm NTN NAO-20×35×26ZW needle roller bearings
- 63206 ZZ
- 30x62x23.8
- 30 mm x 47 mm x 16 mm IKO NAF 304716 needle roller bearings
- 6907-ZZ
- 35x55x10
- KOYO YM202614 needle roller bearings
- 6307-2RU
- 35x80x21
- ISO RNA5918 needle roller bearings
- 6701
- 12x18x4
- NBS HK 223218 needle roller bearings
- 6706LLF
- 30x37x4
- NBS HN5020 needle roller bearings
- 6707-2RS
- 35x44x5
- NSK FJL-3230 needle roller bearings
- 636ZZ
- 6x22x7
- NTN K85X92X26.8 needle roller bearings
- 672
- 2x4x1.2
- NTN PK32X44X17.8 needle roller bearings
- 6332-M
- 160x340x68
- 65 mm x 95 mm x 30 mm JNS NAF 659530 needle roller bearings
- 7215DF
- 75x130x25
- Timken AXK2542 needle roller bearings
- 6806ZZ
- 30x42x7
- 20 mm x 42 mm x 12 mm INA BXRE004-2Z needle roller bearings
- 68/630
- 630x780x69