Inside Diameter (mm): 5
Outside Diameter (mm): 17
Width (mm): 8
Weight: 0.1kg
Material: chrome steel
Seal Type: rubber seal on both sides
Number of Row: double row
Inner (d): 12mm
Outer (D): 39.9mm
Width (B): 18mm
Mass: 0.11kg
Precision: ABEC1/P0
Lubrication: standard grease
NPP: bearing with rubber seals on both sides
KDD: bearing with metal seals on both sides