JNS NA4904 Needle Roller Bearing
JNS NA4904 Machined Ring Type Needle Roller Bearing With Inner Ring, 20mm bore x 37mm outside diameter x 17mm width. Equivalent to IKO NA4904, INA NA4904, NTN NA4904R, Torrington - Koyo NA4904.
Machined type needle roller bearings are high precision bearings which consist of machined outer ring with a complement of needle rollers retained and guided by a cage. The bearings feature a smaller cross-section, higher load-carrying capacity, greater rigidity. Therefore, they are useful in making machinery smaller and lighter.
Specifications- I.D.: 20mm
- O.D.: 37mm
- Width: 17mm
- Dynamic Load Rating: 21000 Cr N
- Static Load Rating: 25000 Cor N
- Limiting Speed: 16000 rpm
JNS Needle Bearing Crossover Chart
- JNS Number with Inner Ring: NA4904
- IKO with Inner Ring: NA4904
- IKO without Inner Ring: RNA4904
- INA with Inner Ring: NA4904
- INA without Inner Ring: RNA4904
- NTN with Inner Ring: NA4904R
- NTN without Inner Ring: RNA4904R
- Torrington - Koyo with Inner Ring: NA4904
- Torrington - Koyo without Inner Ring: RNA4904
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