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：2026-04-16
Application:pump,auto tools,PVC,Air,instrument,switch,Embroidery,laser devices,Laser Devices,surgical instruments,Other machinery
Similar models:SAF 22638 x 7 T W 638/2-2Z W 63801-2Z W 638/4 X-2RZ SAF 22638 x 6.7/8 T W 638-2RS1 W 63804 R W 63805 R W 63805-2Z W 638/4-2RZ
BEARING POWER International Trading Co.,Ltd. specialize in 638-2RZ products，there is large inventory of SKF 638-2RZ Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the 638-2RZ Which SKF 638-2RZ 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
10655	27	44.501	6.35	Seals
21317 EK	85	180	41	Bearings, units and housings
628-2Z	8	24	8	Bearings, units and housings
BT4B 334051 G/HA1VA901	710	900	-	Bearings, units and housings
K 10x14x10 TN	10	14	10	Bearings, units and housings
N 307 ECP	35	80	21	Bearings, units and housings
NATR 5 X	5	16	11	Bearings, units and housings
SILR 40 ES	40	-	28	Bearings, units and housings
SNLN 3030	135	-	-	Bearings, units and housings
SNW 38x6.13/16	173.0375	240.6396	133.3754	Bearings, units and housings
SSAFS 23040 KAT x 7.1/4	184.15	-	-	Bearings, units and housings
Z 308 F	40	-	6	Seals

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Hot number： 1300252 2303 E-2RS1TN9 24130-2CS5K30/VT143 6407 7020 CD/P4AH1 C 3136 K FSAF 22517 x 2.7/8 T FYT 1. TF/VA228 MB 14 MB 24 NA 6917 PBM 182516 M1G1 PRMF 758070 PFT 35 TR RNAO 45x55x17