Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF W 638/2.5-2Z

W 638/2.5-2Z

Dimensions

d		2.5	mm
D		6	mm
B		2.6	mm
d₁	≈	3.7	mm
D₂	≈	5.4	mm
r_1,2	min.	0.08	mm

Abutment dimensions

d_a	min.	3.1	mm
d_a	max.	3.6	mm
D_a	max.	5.5	mm
r_a	max.	0.08	mm

Calculation data

Basic dynamic load rating	C	0.117	kN
Basic static load rating	C₀	0.036	kN
Fatigue load limit	P_u	0.002	kN
Reference speed		170000	r/min
Limiting speed		85000	r/min
Calculation factor	k_r	0.02
Calculation factor	f₀	7.1

Mass

Mass bearing

0.0003

Model Number: W 638/2.5-2Z
Inner Diameter：2.5mm Outer Diameter：6mm Width：2.6mm
Reference speed:85000 r/min Limiting speed:170000 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:hydraulic connector,Film machine,pressure control valve,Storage Tool,Laser Cutting,Hydraulic Couplings,tire industry,Logistics Equipment,plant determination,Textile Industry Accessories and Accessories,teaching equipment
Similar models:W 638/3-2Z W 638/5 R-2Z W 638/4 X-2RS1 W 638/4 XR-2RS1 W 63801 W 63806-2Z W 63804 R-2Z W 638/4 R-2Z SAF 22638 x 6.13/16 TLC W 63803 R
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140x170x15 HMS5 V	140	170	15	Seals
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7006 CE/P4AH1	30	55	13	Bearings, units and housings
71808 CD/P4	40	52	7	Bearings, units and housings
7322 BEP	110	240	50	Bearings, units and housings
HA 3136 L	163.5125	210	131	Bearings, units and housings
HE 2319 EL	82.55	95	90	Bearings, units and housings
IR 50x58x22	50	58	22	Bearings, units and housings
NA 6902	15	28	23	Bearings, units and housings
SAFS 22240	200	-	-	Bearings, units and housings
SIA 60 TXE-2LS	60	-	44	Bearings, units and housings
SILKAC 6 M	6	-	9	Bearings, units and housings

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Hot number： 1207 EKTN9 2303 280x330x24 HDS1 R 419500 37525 6006 NR 62214-2RS1 6303/VA201 7014 CD/P4AL 812/800 M 86240 C 3140 AXK 140180 BSA 205 C SNL 3156 G