d - 4 mm

D - 9 mm

B - 4 mm

C - 4 mm

Weight - 0,001 Kg

Basic dynamic load rating (C) - 0,44 kN

Basic static load rating (C0) - 0,17 kN

Limiting speed - 66500 r/min

• Model Number: SS 638/4-ZZ
• Inner Diameter：4mm Outer Diameter：9mm Width：4mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-10
• Application:Cylinder Special,Microwave Equipment,ultra-quiet generators,Antenna Potentials,Ball screw,agriculture,X-ray Equipment,other mold,Spectrum Products,stamping die,vertical processing
• Similar models:SKF W63805 SKF 638/5-2Z SKF W638/4X-2Z SKF W638/5-2Z ISO 63802ZZ SKF W638/2XR-2Z ISB 63803 SKF W63803-2RZ SKF W63805-2RS1 SKF W638/3-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in SS638/4-ZZ products，there is large inventory of ISB SS 638/4-ZZ . We has been built up long-term cooperation with ISB company, could make a bulk order of the SS 638/4-ZZ Which ISB SS638/4-ZZ 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
  2301	12	37	17	NACHI	Self-Aligning Ball Bearings
  24028-E1	140	210	69	FAG	Spherical Roller Bearings
  24044RK30	220	340	118	KOYO	Spherical Roller Bearings
  320/32-X	160	240	51	FAG	Tapered Roller Bearings
  32311-A	55	120	45,5	FAG	Tapered Roller Bearings
  61892-M	460	580	56	FAG	Deep Groove Ball Bearings
  7030CDF	150	225	35	CYSD	Angular Contact Ball Bearings
  7407 A-UX	35	100	50	CX	Angular Contact Ball Bearings
  BK1816	18	24	16	ZEN	Needle Roller Bearings
  F684ZZ	4	9	2,5	ISB	Deep Groove Ball Bearings
  FYJ 65 KF+H 2313	60			SKF	Bearing Units
  HK091514	9	15	14	ISO	Cylindrical Roller Bearings
  NJF2307 V	35	80	31	ISO	Cylindrical Roller Bearings
  NTH-4472	69,98	112,78	9,53	Timken	Thrust Roller Bearings
  RNA4910LL	58	72	22	NTN	Needle Roller Bearings
  SL192309	45	100	36	ISO	Cylindrical Roller Bearings
  UC205-13	20,638	52	34,1	FAG	Deep Groove Ball Bearings
  SN617	75		110	FAG	PILLOW BLOCKS
  RL-11	1.3750	3.0000	.6875	SKF	SELF
  NUKRE-52X	52		24	CONSOLIDATED	NEEDLE ROLLERS