TAFI425730 Needle Roller Bearing (Alt P/N: NKI42/30, NKJ42/30A)

TAFI425730 Needle Roller Bearing with Machined Rings and Flanges (Interchange Part No.: NKI42/30, NKJ42/30A), Metric Size, Single Row, Light Series.

Size: 42x57x30mm

Inside Diameter (d): 42 mm

Outside Diameter (D): 57 mm

Width (C): 30 mm

Ring Material: Chrome Steel

Roller Material: Chrome Steel

Cage Material: Steel

Operating Temp: -30 °C to 120 °C

HS Code: 8482500090

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication.

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.

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