d - 9 mm

D - 30 mm

B - 10 mm

d₂ - - 15.3 mm

D₂ - - 25.28 mm

r_1,2 - min. - 0.6 mm

d_a - min. - 13 mm

d_a - max. - 15.2 mm

D_a - max. - 26 mm

r_a - max. - 0.6 mm

Basic dynamic load rating - C - 4.9 kN

Basic static load rating - C₀ - 2.3 kN

Fatigue load limit - P_u - 0.1 kN

Reference speed - 60000 r/min

Limiting speed - 30000 r/min

Calculation factor - k_r - 0.035

Calculation factor - f₀ - 12.9

Mass bearing - 0.0335 kg

• Model Number: W 639-2Z
• Inner Diameter：30mm Outer Diameter：9mm Width：10mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-25
• Application:power source,Oral Image,test strip,joint protection,Logistics Equipment,Internal thread type,altimeter etc,Gas turbine,Hydraulic Couplings,Traffic Fire Protection Equipment Security equipment,flexible processing
• Similar models:KOYO 639ZZ AST 639H-2RS SKF W639/3-2RS1 SKF W639/2R-2Z SKF W639/2-2Z KOYO 639 SKF W639/1.5R-2Z SKF W639/3-2Z CYSD 1639-2RS CYSD 1639
• BEARING POWER International Trading Co.,Ltd. specialize in W639-2Z products，there is large inventory of SKF W 639-2Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639-2Z Which SKF W639-2Z 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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  11162/11300	41,275	76,2	18,009	NSK	Tapered Roller Bearings
  123075/123123XC	75	123,825	24,6	Gamet	Tapered Roller Bearings
  210-ZNR	90	50	20	SKF	Deep Groove Ball Bearings
  22206W33	30	62	20	ISO	Spherical Roller Bearings
  2928	140	185	31	NACHI	Thrust Ball Bearings
  32020A	100	150	32	SNR	Tapered Roller Bearings
  63/28-2RS	28	68	18	Fersa	Deep Groove Ball Bearings
  6319N	95	200	45	NACHI	Deep Groove Ball Bearings
  BK 4020	40	47	20	NBS	Needle Roller Bearings
  NF417	85	210	52	KOYO	Cylindrical Roller Bearings
  NJ224-E-MPA+HJ224-E	120	215	40	NKE	Cylindrical Roller Bearings
  NK50/25	50	62	25	JNS	Needle Roller Bearings
  S7007 CE/HCP4A	62	35	14	SKF	Angular Contact Ball Bearings
  6207RS	72	35	17	FAG	DEEP GROOVE BALL BEARINGS
  CSXA047	4.7500	5.2500	.2500	INA	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  NA4832	160	200	40	SKF	NEEDLE BEARINGS
  FJ-4020	47		20	NSK	NEEDLE BEARINGS
  FPAD700	7.0000	8.0000	.5000	SKF	ANGULAR CONTACT BALL BEARINGS
  6238-R	190	340	55	CONSOLIDATED	ANGULAR CONTACT BALL BEARINGS
  231/850	850	1360	400	CONSOLIDATED	SPHERICAL ROLLER BEARINGS