(dimensions in inches)

Bearing Type - Open

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 (Li) - 0.4

Min. Housing Shoulder Dia., Outer (Lo) - 0.5

Ball Qty - 8

Ball Dia (Dw) - 0.0937

Weight (g) - 4.46

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.

• Model Number:R4
• Inner Diameter：6,35mm Outer Diameter：15,875mm Width：4,9784mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:education model Instruments,small appliances,Cylinder Micro,injection molding machine,Medical room equipment,Automation,rock drilling machinery,switch,motorcycle,packing equipment,office equipment
• Similar models:SIGMA LJ1.1/8 INA 210-KRR NTN SX0590LUN KOYO 6826 KOYO 6203-2RD NTN 6305ZNR CYSD 6024-RS INA CRB35/110 ISO MF117 NKE 6020-2Z
• BEARING POWER International Trading Co.,Ltd. specialize in R4 products，there is large inventory of AST R4 . We has been built up long-term cooperation with AST company, could make a bulk order of the R4 Which AST R4 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
  16030	150	225	24	SIGMA	Deep Groove Ball Bearings
  22318BK	90	190	64	NTN	Spherical Roller Bearings
  248/530-K-MB-W33	530	650	118	NKE	Spherical Roller Bearings
  24048-K30-MB-W33+AH24048	240	360	118	NKE	Spherical Roller Bearings
  32220-A-N11CA-A230-280	100	180	98	FAG	Tapered Roller Bearings
  61910	72	50	12	SKF	Deep Groove Ball Bearings
  6202LLU	15	35	11	NTN	Deep Groove Ball Bearings
  62800-2RS	10	19	6	ZEN	Deep Groove Ball Bearings
  6304	20	52	15	MPZ	Deep Groove Ball Bearings
  ASTEPB 3236-20	32	36		AST	Plain Bearings
  F-234976.04	45,98	90	20	FAG	Angular Contact Ball Bearings
  NA4900	10	22	13	NSK	Needle Roller Bearings
  NF 426	130	285		NACHI	Cylindrical Roller Bearings
  NU1015	75	115	20	NTN	Cylindrical Roller Bearings
  NU19/900	900	1180	122	CX	Cylindrical Roller Bearings
  1308R	40	90	23	FED	DEEP GROOVE BALL BEARINGS
  23836	180	225	34	CONSOLIDATED	SPHERICAL ROLLER BEARINGS
  SNZ-314..2314	70	60	90	CONSOLIDATED	PILLOW BLOCKS
  1216	80	140	26	CONSOLIDATED	SELF
  VSI200414	325	486		CONSOLIDATED	SLEWING BEARINGS