Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 639/3-2Z

W 639/3-2Z

Dimensions

d		3	mm
D		8	mm
B		4	mm
d₁	≈	4.35	mm
D₂	≈	7.25	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	3.9	mm
d_a	max.	4.3	mm
D_a	max.	7.3	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.319	kN
Basic static load rating	C₀	0.09	kN
Fatigue load limit	P_u	0.004	kN
Reference speed		150000	r/min
Limiting speed		75000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	6.1

Mass

Mass bearing

0.00082

Model Number: W 639/3-2Z
Inner Diameter：3mm Outer Diameter：8mm Width：4mm
Reference speed:75000 r/min Limiting speed:150000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-04-17
Application:test laboratory equipment and accessories,engineering machine,Broadcasting System,Textile Accessories,set bacteria instrument,chuck industry,gear grinding machine,milling head plug,forklift truck,transportation equipment,Laser Devices
Similar models:6391/K-6320 W 639-2RS1 W 639/2 R-2Z W 639/2-2Z W 639-2Z W 639 W 639/1.5-2Z W 639/2.5-2ZS LL 639249/210 W 639/3-2RS1
BEARING POWER International Trading Co.,Ltd. specialize in W639/3-2Z products，there is large inventory of SKF W 639/3-2Z Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639/3-2Z Which SKF W639/3-2Z 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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NK 60/35	60	72	35	Bearings, units and housings
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SAF 23032 KATLC x 5.1/2	136.525	-	-	Bearings, units and housings
SAFS 22238 T	190	-	-	Bearings, units and housings
SAFS 23026 KATLC x 4.7/16	112.7125	-	-	Bearings, units and housings
SSAFS 22528 T	125.4125	-	-	Bearings, units and housings
SYE 1 11/16-18	42.8625	-	-	Bearings, units and housings

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Hot number： 1317 K 21314 EK BD-23218 CCK/W33-H 2318 51206 V/HR22Q2 618/1120 MA 595079 6068 M 7016 ACE/HCP4AL HK 0810 K 14x18x15 TN MS 3192-88 NJ 409 NNCL 4936 CV OKC 085 SAW 23520 x 3.5/16