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

d_a - min. - 4.6 mm

d_a - max. - 5.1 mm

D_a - max. - 8.4 mm

r_a - max. - 0.1 mm

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 bearing - 0.001 kg

• Model Number: 628/4-2Z
• Inner Diameter：9mm Outer Diameter：4mm Width：3,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:security equipment,garden machinery,trolley,CNC,motor,inorganic chemical,machine tool spindle,Rolling mill gear box,powder metallurgy,glass,food packaging
• Similar models:KOYO 3NC628YH4 ISB 628/9-Z ZEN SF628-2Z AST 628HZZ KOYO NC628 CX 628 SKF 628/9-2RS1 ZEN F628-2Z CYSD 1628-ZZ SKF W628-2RZ
• BEARING POWER International Trading Co.,Ltd. specialize in 628/4-2Z products，there is large inventory of SKF 628/4-2Z . 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.

• Model No.	Inner Diameter	Outer Diameter	Width	Brand	Type
  22206AEXK	30	62	20	NACHI	Cylindrical Roller Bearings
  29580/29520	60	107,95	25,4	KOYO	Tapered Roller Bearings
  2984/2924	46,038	85	25,4	Timken	Tapered Roller Bearings
  3206	30	62	23,8	CRAFT	Angular Contact Ball Bearings
  6811LU	55,000	72,000	9,000	NTN	Deep Groove Ball Bearings
  4T-30308C	40	90	25,25	NTN	Tapered Roller Bearings
  AST800 3230	32	36		AST	Plain Bearings
  ASTEPB 1517-25	15	17		AST	Plain Bearings
  ESFE208	40			SNR	Bearing Units
  F-89754.3	24	44,5	22,75	INA	Cylindrical Roller Bearings
  HM212049/HM212010	66,675	122,238	38,1	FBJ	Tapered Roller Bearings
  M88048/M88022	33,338	76,2	22,225	Timken	Tapered Roller Bearings
  NP2344	220	460	145	ISO	Cylindrical Roller Bearings
  R 6	9,525	22,225	5,558	NSK	Deep Groove Ball Bearings
  MS241/2AC	6.5000	13.0000	2.5000	FAG	ANGULAR CONTACT BALL BEARINGS
  KB035ARO	3.5000	4.1250	.3125	KAYDON	ANGULAR CONTACT BALL BEARINGS
  CFM11	1.3750	3.5000	.8750	SKF	CYLINDRICAL ROLLER BEARINGS
  R-4A	.2500	.7500	.2187	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  KU-70XPO-2RS	7.0000	7.7500	.5000	CONSOLIDATED	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  N-410	50	130	31	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS