JNS NA4911 Needle Roller Bearing

JNS NA4911 Machined Ring Type Needle Roller Bearing With Inner Ring, 55mm bore x 80mm outside diameter x 25mm width. Equivalent to IKO NA4911, INA NA4911, NTN NA4911R, Torrington - Koyo NA4911.

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.: 55mm
• O.D.: 80mm
• Width: 25mm
• Dynamic Load Rating: 57600 Cr N
• Static Load Rating: 97300 Cor N
• Limiting Speed: 6500 rpm

JNS Needle Bearing Crossover Chart

• JNS Number with Inner Ring: NA4911
• IKO with Inner Ring: NA4911
• IKO without Inner Ring: RNA4911
• INA with Inner Ring: NA4911
• INA without Inner Ring: RNA4911
• NTN with Inner Ring: NA4911R
• NTN without Inner Ring: RNA4911R
• Torrington - Koyo with Inner Ring: NA4911
• Torrington - Koyo without Inner Ring: RNA4911