d - 9 mm

D - 30 mm

B - 10 mm

C - 10 mm

r min. - 0,6 mm

r1 min. - 0,6 mm

da min. - 13 mm

Da max. - 26 mm

ra max. - 0,6 mm

Weight - 0,035 Kg

Basic dynamic load rating (C) - 6 kN

Basic static load rating (C0) - 2,65 kN

(Grease) Lubrication Speed - 24000 r/min

(Oil) Lubrication Speed - 29000 r/min

Calculation factor (f0) - 12,3

• Model Number: 639
• Inner Diameter：9mm Outer Diameter：30mm Width：10mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-10
• Application:ventilation equipment,animal,die casting mold,Dental Drill etc,EEG,Laser Devices,Industrial,decoration machinery,Medical room equipment,Industrial,Rolling mill gear box
• Similar models:SKF W639 SKF W639/1.5R-2Z CYSD 1639-ZZ ISB SS639/2-ZZ SKF W639-2RZ CYSD 1639-Z NSK 639ZZ SKF W639/2.5R-2ZS FBJ 639ZZ SKF W639/3-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in 639 products，there is large inventory of KOYO 639 . We has been built up long-term cooperation with KOYO company, could make a bulk order of the 639 Which KOYO 639 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
  544090/544116	228,6	295,275	33,338	NSK	Cylindrical Roller Bearings
  6315-ZZ	75	160	37	ISB	Deep Groove Ball Bearings
  7019 B-UD	95	145	48	CX	Angular Contact Ball Bearings
  7224 A	120	215	40	CX	Angular Contact Ball Bearings
  F688AVV	8	18	5	NSK	Deep Groove Ball Bearings
  GEZ101ES	101,6	158,75	88,9	LS	Plain Bearings
  NJ 419	95	240	55	NACHI	Cylindrical Roller Bearings
  NJ2317-E-MA6	85	180	60	NKE	Cylindrical Roller Bearings
  PBR18EFN	18			NMB	Self-Aligning Ball Bearings
  RTUEY25	25			NKE	Bearing Units
  T-E-M268749D/M268710/M268710DG2	415,925	590,55	434,975	NTN	Tapered Roller Bearings
  SL05-016	80,000	120,000	45,000	NTN	Cylindrical Roller Bearings
  UCPLE202	15			SNR	Bearing Units
  UKIP209	41,275		70	KOYO	Bearing Units
  NA4909	45	68	22	FAG	NEEDLE BEARINGS
  NATR10	10	30	15	FAG	NEEDLE BEARINGS
  NA4909RSR	45	68	22	FAG	NEEDLE BEARINGS
  100TVB433	10.0000	13.5000		Torrington	THRUST BALL BEARINGS
  51284				SNR	THRUST BALL BEARINGS
  61812-2RS	60	78	10	CONSOLIDATED	DEEP GROOVE BALL BEARINGS