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.

• 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