roulements à aiguilles

Contacter maintenant

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 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.

roulements à aiguilles Bore Dia Outer DIa Width Size
NBS K 45x52x18 roulements à aiguilles 20 mm 40x75x20 54 mm 40 mm
ISO K32x39x18 roulements à aiguilles 36 mm 645 mm 36 mm 93 mm
85 mm x 115 mm x 30 mm JNS NAF 8511530 roulements à aiguilles 140 kN 60 mm 95 5126 r/min
INA SCE66-P roulements à aiguilles 6313-2RS KOYO 3200 r/min 65x140x33
NBS K 32x40x25 roulements à aiguilles GE 180ES-2RS IKO 253 mm 1770 kN
KOYO JT-1417 roulements à aiguilles ISO 258 mm 750 mm 750
KOYO TV2639-1 roulements à aiguilles 1,6 Kg 24 mm 29,6 kN 14 mm
KOYO BHM1720A roulements à aiguilles FWF-687430 74 mm 52 kN 30 mm
IKO TA 2930 Z roulements à aiguilles 1,920 N Ball Bearing 0.472 Inch | 12 Mill No
60 mm x 90 mm x 20 mm KOYO NA1060 roulements à aiguilles ISO 130 60 60x130x54
NSK Y-1910 roulements à aiguilles ZAXFM0635 2 mm / Grub screw to 8 mm 3400 N / Dynamic loa
KOYO AX 30 47 roulements à aiguilles 6,6 mm 48 mm M8 0,3 Kg