(dimensions in inches)

Bearing Type - Shielded

Bore Dia (d) - 0.2500

Outer Dia (D) - 0.6250

Width (B) - 0.1960

Radius (min) (rs) - 0.002

Dynamic Load Rating (Cr) - 333

Static Load Rating (Cor) - 131

Max Speed (Grease) (X1000 RPM) - 38

Max Speed (Oil) (X1000 RPM) - 45

Max. Shaft Shoulder Dia. Inner (Ui) - 0.3

Min. Housing Shoulder Dia., Outer (Uo) - 0.534

Ball Qty - 8

Ball Dia (Dw) - 0.0937

Weight (g) - 4.54

Precision - A1

Standard Clearance - K25

Material - 52100 Chrome steel (or equivalent)

Also available in Stainless Steel, add prefix "S"

ABEC Grades 1, 3, 5, 7, and 9 are available.

Two metal shields = (ZZ), also available with a single metal shield = (Z).

• Model Number: R4ZZ
• Inner Diameter：6,35mm Outer Diameter：15,875mm Width：4,9784mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-23
• Application:climb ladder,Other Machine Tools,electric pump,internal combustion engine,Body shaping,coupling type,machine tool spindle,car shock absorber,stirrer,Forklift industry,wire industry
• Similar models:ISO 61864 KOYO 3NC626YH4 CYSD 16009 AST 6315-2RS SKF 6305-2Z/VA201 ISB 685 KOYO 4310 NSK B49-3 FAG UC212 CX K6203-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in R4ZZ products，there is large inventory of AST R4ZZ . We has been built up long-term cooperation with AST company, could make a bulk order of the R4ZZ Which AST R4ZZ 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
  230BN32-1	230	320	40	NACHI	Angular Contact Ball Bearings
  30221	105	190	39	NTN	Tapered Roller Bearings
  7330B	150	320	65	NTN	Angular Contact Ball Bearings
  78225/78551	57,15	140,03	36,512	CX	Tapered Roller Bearings
  CR-9111	457,2	573,088	74,613	NTN	Tapered Roller Bearings
  CX280				CX	Wheel Bearings
  ER207-21	33,3375	72	42,9	KOYO	Deep Groove Ball Bearings
  LMH12L	12	21		Samick	Linear Bearings
  NA4822	110	140	30	INA	Needle Roller Bearings
  NF2204	20,000	47,000	18,000	NTN	Cylindrical Roller Bearings
  NK9/12	9	16	12	ZEN	Needle Roller Bearings
  NU 211 ECM/C3VL0241	100	55	21	SKF	Cylindrical Roller Bearings
  PCJY1	25,4			INA	Bearing Units
  T-M268730/M268710DG2+A	381	590,55	244,475	NTN	Tapered Roller Bearings
  T5ED060	60	115	39	FAG	Tapered Roller Bearings
  UCPX09	45			ISO	Bearing Units
  SAF609	1.5000			FAG	PILLOW BLOCKS
  GE12AW	12	35	9.3	ELGES	SPHERICAL PLAIN BEARINGS
  2MMV313WI-CRDU	65	140	33	FAF	ANGULAR CONTACT BALL BEARINGS
  31308	40	90	23	CONSOLIDATED	TAPERED ROLLER BEARINGS