d - 1 mm

D - 4 mm

B - 1,6 mm

C - 1,6 mm

r min. - 0,1 mm

da min. - 1,8 mm

Da max. - 3,2 mm

ra max. - 0,1 mm

Weight - 0,0001 Kg

Basic dynamic load rating (C) - 0,14 kN

Basic static load rating (C0) - 0,04 kN

(Grease) Lubrication Speed - 120000 r/min

(Oil) Lubrication Speed - 140000 r/min

Calculation factor (f0) - 11,4

• Model Number: 691
• Inner Diameter：1mm Outer Diameter：4mm Width：1,6mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:air conditioning tools,wheel lathe,switch,large agricultural machinery,beverage production,survey accessories,printing machinery,Industrial Adhesive,Pneumatic Actuator,animal,medical equipment
• Similar models:NACHI 6910ZENR NTN 6917 KOYO 6918-2RS NTN 6914 FBJ 6911ZZ FBJ 6911 NSK 6917ZZ KOYO 6914-2RD NSK 6910N FBJ 6917
• BEARING POWER International Trading Co.,Ltd. specialize in 691 products，there is large inventory of KOYO 691 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 691 Which KOYO 691 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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