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：2026-07-29
Application:Automobile,forklift industry,Reflective Materials Industrial fabrics,food testing,leather processing,Anesthetic Equipment,Broadcasting System,Cylinder Pneumatic Treatment Element,Solenoid Valves,dye pigments,vertical pull
Similar models:W 628 SAF 22628 W 628/7-2Z 628/7-2Z 628-RS1 628-2RS1 W 628/6 R-2RZ W 628/6-2RZ 628/8-2RS1 W 628/9-2Z
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Model No. Inner Diameter Outer Diameter Width Type

130x160x15 HMS5 V
15508
28x44x6 HMS5 RG
HA 307
PRM 252820

Purchase the SKF 628/4-2Z Please fill in the following

Hot number： 17806 1300 VL R 17488 2216 EKTN9 42433 45x72x10 HMSA10 RG 72510 7872 99121 C 31/500 KM PF 35 TF SSAFS 22534 x 5.13/16 T SY 1. TF/VA201 W 63801 YAT 212-207

Model No.	Inner Diameter	Outer Diameter	Width	Type
130x160x15 HMS5 V
15508
28x44x6 HMS5 RG
HA 307
PRM 252820