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：2025-04-19
• Application:,internal combustion engine,glass,motor,Other Machine Tools,medical equipment,steam Hydraulic control element,ignition system,industrial skin care,cleaning agent,Tool
• Similar models:KOYO 6918-2RU CYSD 6913-2RZ NTN 6910ZZ KOYO 6913-2RU FBJ 691 CYSD 6911 KOYO 6910 FBJ 6914 NSK 6917ZZ CYSD 6911-RS
• 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  5213-2RS	65	120	38,1	AST	Angular Contact Ball Bearings
  3309-B-2RSR-TV	45	100	39,7	NKE	Angular Contact Ball Bearings
  3313A	65,000	140,000	58,700	SNR	Angular Contact Ball Bearings
  5307SCLLD	35	80	34,9	NTN	Angular Contact Ball Bearings
  93800/93125	203,2	317,5	63,5	CX	Tapered Roller Bearings
  D/W RW1-4-2ZS	6,35	1,984	4,366	SKF	Deep Groove Ball Bearings
  IJ122010	30			ILJIN	Angular Contact Ball Bearings
  K18X24X12BE	18	24		Timken	Needle Roller Bearings
  KEE275108/K275155	273,05	393,7	73,817	ISB	Tapered Roller Bearings
  LMF6UU	6	12		Samick	Linear Bearings
  NJ18/900	900	1090	85	CX	Cylindrical Roller Bearings
  NMJ 1	25,4	63,5	19,05	SIGMA	Self-Aligning Ball Bearings
  P6306-SB	30	72	19	ZEN	Deep Groove Ball Bearings
  SN206with20206	30	-	52	FAG	PILLOW BLOCKS
  NU2305E	25	62	24	SKF	CYLINDRICAL ROLLER BEARINGS
  QJM51/2	5.5000	11.0000	2.0000	RHP	ANGULAR CONTACT BALL BEARINGS WITH SPLIT INNER RACE
  RNA4822	140		30	Torrington	NEEDLE BEARINGS
  Z4993L09	45	75	16	New Departure	DEEP GROOVE BALL BEARINGS
  260TP182				Torrington	THRUST ROLLER BEARINGS
  N436	180	440	95	STEYR	CYLINDRICAL ROLLER BEARINGS