Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 638-2RZ

638-2RZ

Dimensions

d		8	mm
D		28	mm
B		9	mm
d₁	≈	14.8	mm
D₂	≈	22.6	mm
r_1,2	min.	0.3	mm

Abutment dimensions

d_a	min.	10.4	mm
d_a	max.	14.7	mm
D_a	max.	25.6	mm
r_a	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	1.33	kN
Basic static load rating	C₀	0.57	kN
Fatigue load limit	P_u	0.024	kN
Reference speed		60000	r/min
Limiting speed		30000	r/min
Calculation factor	k_r	0.03
Calculation factor	f₀	12

Mass

Mass bearing

0.03

Model Number: 638-2RZ
Inner Diameter：8mm Outer Diameter：28mm Width：9mm
Reference speed:30000 r/min Limiting speed:60000 r/min
Type：Bearings, units and housings Ball bearings Deep groove ball bearings Deep groove ball bearings
Details： Deep groove ball bearings
Update date：2026-07-29
Application:directional control valve,stamping die and its equipment,coal,fruit and vegetable processing,Industrial,rubber products machinery and equipment,Forging machine,powder metallurgy,switch,Laser Devices,garden machinery
Similar models:W 638/2 XR-2Z W 63801 R SAF 22638 TLC W 638/5-2Z W 638/4-2RS1 W 638/1.5-2Z W 638/4 X-2RS1 SAF 22638 x 7 T W 63804 W 638/3 R-2RS1
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Model No. Inner Diameter Outer Diameter Width Type

305802 C-2RS1
406000
48290/48220
BT4-8127 E1/C700
IR 85x95x26

Purchase the SKF 638-2RZ Please fill in the following

Hot number： 10050 22209 EK 27565 48x72x7 HMS5 V 6232/HC5C3S0VA970 7026 CD/P4AL 71916 ACD/HCP4AL H 311 NU 18/1700 ECMA/HB1 PCZ 1216 E RLS 8-2Z RN-2.5x13.8 BF/G2 SD 25x33x4 SNP 3168x12.7/16 Z 216

Model No.	Inner Diameter	Outer Diameter	Width	Type
305802 C-2RS1
406000
48290/48220
BT4-8127 E1/C700
IR 85x95x26