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 - 9E-05 Kg

Basic dynamic load rating (C) - 0,138 kN

Basic static load rating (C0) - 0,035 kN

(Grease) Lubrication Speed - 100 000 r/min

(Oil) Lubrication Speed - 120 000 r/min

• Model Number: 691
• Inner Diameter：1mm Outer Diameter：4mm Width：1,6mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-09
• Application:Other Measurements,embroidery cloth,power tools,comprehensive experiment,injection molding machine,universal category,Digital Generator,powder metallurgy,water protection,mobile toilet,ventilation fans
• Similar models:CYSD 6916-RS NTN 6918LLB CYSD 6915-ZZ NACHI 6911ZNR NSK 6910L11-H-20DDU CYSD 6917-Z KOYO 6913ZZ CYSD 6910N CYSD 6911-Z NTN 6916LLU
• BEARING POWER International Trading Co.,Ltd. specialize in 691 products，there is large inventory of NSK 691 . We has been built up long-term cooperation with NSK company, could make a bulk order of the 691 Which NSK 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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