roulements à aiguilles
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.[1] 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 feature a smaller cross-section, higher load-carrying capacity, greater rigidity, and lower inertia forces that facilitate size and weight reductions in machinery. They’re designed to withstand oscillation, perform under severe conditions, and interchange with sliding bearings.

- Timken K25X31X24F roulements à aiguilles
- 140x210x45
- 210 mm

- NBS RNA 4910 2RS roulements à aiguilles
- 13
- 7911DF

- KOYO K25X30X17H roulements à aiguilles
- 34
- 34x146.4x74.95

- KOYO R56/34 roulements à aiguilles
- Needle Roller Bearin
- 0.984 Inch | 25 Mill

- 55 mm x 80 mm x 25 mm KOYO NA4911 roulements à aiguilles
- 218 kN
- 3000 r/min

- KOYO 28R3620 roulements à aiguilles
- 1,5 mm
- 384,175 mm

- NTN MR526832 roulements à aiguilles
- Round
- 8.8 kN

- NSK MFJLT-4018 roulements à aiguilles
- 16 mm
- 16 mm

- INA BCE2010 roulements à aiguilles
- 120
- 77,788

- Timken K37X42X13H roulements à aiguilles
- 16
- 0,022 Kg

- IKO KT 222816 EG roulements à aiguilles
- 25,4 mm
- 25,4