NTN A small diameter ball bearing (shielded on both sides) Inner diameter 20 mm, outer diameter 37 mm, width 9 mm 6904ZZ 1 pc

Catalogue number: 6904ZZ Features: ● Shielded from both sides by metal shield plates, excellent dust resistance. Applications: ● High-speed rotation applications requiring dust resistance. Specifications: ● Inner ring diameter (mm): 20 ● Outer ring diameter (mm): 37 ● Width (mm): 9 ● Operating temperature range (℃): -25 to 120 ● Precision grade: JIS B 1514 Grade 0 ● Shield shape: Steel plate shield, non-contact on both sides (ZZ) ● Operating temperature range: -25 to 120℃ Material/Finish: ● High carbon chromium bearing steel