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roulements à aiguilles
Contacter maintenantA 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 |