Bearings, units and housings -- Ball bearings -- Deep groove ball bearings -- Deep groove ball bearings -- SKF 628/4-2Z

628/4-2Z

Dimensions

d		4	mm
D		9	mm
B		3.5	mm
d₁	≈	5.2	mm
D₂	≈	8.1	mm
r_1,2	min.	0.1	mm

Abutment dimensions

d_a	min.	4.6	mm
d_a	max.	5.1	mm
D_a	max.	8.4	mm
r_a	max.	0.1	mm

Calculation data

Basic dynamic load rating	C	0.54	kN
Basic static load rating	C₀	0.18	kN
Fatigue load limit	P_u	0.07	kN
Reference speed		140000	r/min
Limiting speed		70000	r/min
Calculation factor	k_r	0.015
Calculation factor	f₀	10

Mass

Mass bearing

0.001

Model Number: 628/4-2Z
Inner Diameter：4mm Outer Diameter：9mm Width：3.5mm
Reference speed:70000 r/min Limiting speed:140000 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:preservation equipment,Insect Count,wire industry,position switch,marine analysis,Medical equipment,security,Cylinder Micro,Dental Drill etc,security equipment,non-ferrous metal alloy
Similar models:W 628/6-2RS1 SAF 22628 x 4.13/16 TLC SAF 22628 T 628-2RS1 W 628/7 R-2RS1 W 628/6 R-2RS1 W 628/5 R-2Z 16150/16283 628/6-2Z 628-Z
BEARING POWER International Trading Co.,Ltd. specialize in 628/4-2Z products，there is large inventory of SKF 628/4-2Z Deep groove ball bearings. We has been built up long-term cooperation with SKF company, could make a bulk order of the 628/4-2Z Which SKF 628/4-2Z 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.

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68730	174.625	209.55	12.7	Seals
719/710 ACMB	710	950	106	Bearings, units and housings
7419 M	95	250	55	Bearings, units and housings
C 3196 KMB	480	790	248	Bearings, units and housings
D/W R188-2Z	6.35	12.7	4.762	Bearings, units and housings
EE 752305/752380	774.7	965.2	93.662	Bearings, units and housings
K 40x45x17	40	45	17	Bearings, units and housings
PFD 25 RM	25	-	-	Bearings, units and housings

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Hot number： 12483 19438 19579 23076 CC/W33 292/530 EM 400 VA V 50x68x8 HMS5 RG 71920 CB/HCP4A 71980 AM BC4B 316515 HE 318 NJ 2319 ECP SSAFS 22544 x 7.7/8 SY 35 LDW YAR 210-2FW/VA228