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

W 639/2-2Z

Dimensions

d		2	mm
D		6	mm
B		3	mm
d₁	≈	3	mm
D₂	≈	5.4	mm
r_1,2	min.	0.15	mm

Abutment dimensions

d_a	min.	2.9	mm
d_a	max.	2.9	mm
D_a	max.	5.4	mm
r_a	max.	0.15	mm

Calculation data

Basic dynamic load rating	C	0.19	kN
Basic static load rating	C₀	0.051	kN
Fatigue load limit	P_u	0.002	kN
Reference speed		180000	r/min
Limiting speed		90000	r/min
Calculation factor	k_r	0.025
Calculation factor	f₀	6

Mass

Mass bearing

0.00031

Model Number: W 639/2-2Z
Inner Diameter：2mm Outer Diameter：6mm Width：3mm
Reference speed:90000 r/min Limiting speed:180000 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:ventilation fans,flexible processing,Oral Equipment,Small air generators,Pneumatic Actuator,Medical printer,economic mold,spreader series,product accessories,medical Equipment,training beds etc
Similar models:W 639-2Z W 639/2.5 R-2ZS W 639/2.5-2ZS W 639-2RS1 W 639-2RZ W 639/3 R-2Z 6391/K-6320 W 639/3-2RS1 W 639/2 R-2Z W 639/2-2Z
BEARING POWER International Trading Co.,Ltd. specialize in W639/2-2Z products，there is large inventory of SKF W 639/2-2Z Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the W 639/2-2Z Which SKF W639/2-2Z 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.

Model No.	Inner Diameter	Outer Diameter	Width	Type
11111	28.575	41.25	6.35	Seals
1212 EKTN9	60	110	22	Bearings, units and housings
17448	44.45	66.62	7.95	Seals
358060	530	710	120	Bearings, units and housings
50x72x7 HMSA7P2 R	50	72	7	Seals
626/HR22T2	6	19	6	Bearings, units and housings
6305/HR11QN	25	62	17	Bearings, units and housings
7006 ACE/HCP4AH1	30	55	13	Bearings, units and housings
BT4B 331161 AG/HA4	317.5	447.675	-	Bearings, units and housings
NUP 2212 ECML	60	110	28	Bearings, units and housings
SAFS 22520 x 3.3/8	85.725	-	-	Bearings, units and housings
SSAFS 22522 x 3.7/8 T	98.425	-	-	Bearings, units and housings

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Hot number： 145x175x15 HMSA10 RG BD-23028 CCK/W33-H 3028 7316 BEP 7321 BEP 90891 C 3130 FSYE 2 15/16 N-118 HA 3036 K 14x18x15 TN MS 30/900-850 NUKR 35 A NUP 2216 ECML P 30 TF PCM 606520 E PCZ 6460 M