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

638-RZ

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		38000	r/min
Calculation factor	k_r	0.03
Calculation factor	f₀	12

Mass

Mass bearing

0.03

Model Number: 638-RZ
Inner Diameter：8mm Outer Diameter：28mm Width：9mm
Reference speed:38000 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：2025-12-09
Application:crimping tools,hanging clamp,Workpiece,car instrument,other processing,test strip,non-motor vehicle Electric car,plant determination,machine tool spindle,extruder,medical equipment
Similar models:W 638/2.5 R-2Z W 63802 R SAF 22638 x 7 W 63804 R W 63806-2Z W 638/8-2Z SAF 22638 T W 638/4 X-2RZ W 63800 R-2Z W 63802-2Z
BEARING POWER International Trading Co.,Ltd. specialize in 638-RZ products，there is large inventory of SKF 638-RZ Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the 638-RZ Which SKF 638-RZ 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
375 VA V	337	-	-	Seals
7000 ACE/P4AH	10	26	8	Bearings, units and housings
BTM 160 AM/P4CDB	160	240	72	Bearings, units and housings
C 3068 M	340	520	133	Bearings, units and housings
HA 3024 E	106.3625	155	72	Bearings, units and housings
HME 3080	52	-	400	Bearings, units and housings
NKS 37	37	52	22	Bearings, units and housings
PSM 182530 A51	18	25	30	Bearings, units and housings
SAFS 23024 KAT x 4	101.6	-	-	Bearings, units and housings
SSAFS 23038 KAT x 6.13/16	173.0375	-	-	Bearings, units and housings
W 608 R-2RZ	8	22	7	Bearings, units and housings
W 6302	15	42	13	Bearings, units and housings

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Hot number： 23172-2CS5K/VT143 300x332x16 HDS2 R 306 331607 A 526808 55x75x10 HMSA10 RG 6016 NR 618/670 MA 71911 ACD/P4AL FYNT 45 F BSD 2562 C FYE 1 1/2 HM 89449/410 MVR2-85 SSAFS 22536 x 6.3/8 T