RNA4907 INA Needle Roller Bearing 42x55x20

RNA4907 INA Needle Roller Bearing 42x55x20 Without Inner Ring

Needle roller bearings with machined rings made of bearing steel have a low sectional height and a high load carrying capacity. They can be used with or without an inner ring. Needle roller bearings without an inner ring will require the shaft to be hardened and ground.

X-life: INA Needle roller bearings with ribs have optimised raceway surfaces for higher load carrying capacity and longer life rating.

The most popular ranges in this product type are:

• NK, NKS, RNA series - Without Inner Rings
• RNA.....-2RS - Without Inner Rings but with integral lip seals
• NKI, NA, NKIS - With Inner Rings
• NA.....-2RS - With Inner Rings and integral lip seals 

 Other types available on request include:

• RNAO - Needle Roller Bearing without ribs and without inner ring
• NAO - Needle Roller Bearing without ribs but with inner ring
• RPNA - Aligning Needle Roller Bearing without inner ring
• PNA - Aligning Needle Roller Bearing with inner ring

RNA4907-INA dimension chart - all dimensions in mm unless indicated.

d	D	B
42	55	20