(dimensions in inches)

Bearing Type - Flanged Open

Bore Dia (d) - 0.0781

Outer Dia (D) - 0.2500

Width (B) - 0.0937

Radius (min) (rs) - 0.004

Flange Dia (Df) - 0.2960

Flange Width (Bf) - 0.023

Dynamic Load Rating (Cr) - 54

Static Load Rating (Cor) - 17

Max Speed (Grease) (X1000 RPM) - 67

Max Speed (Oil) (X1000 RPM) - 80

Max. Shaft Shoulder Dia. Inner (Li) - 0.2

Min. Housing Shoulder Dia., Outer (Lo) - 0.2

Ball Qty - 7

Ball Dia (Dw) - 0.0394

Weight (g) - 0.46

Precision - A1

Standard Clearance - K25

Material - Martensitic Stainless Steel

Also available in 52100 Chrome Steel

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

• Model Number:SFR1-4
• Inner Diameter：1,98374mm Outer Diameter：6,35mm Width：2,38mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:medical Equipment,Performance test,non-ferrous metal alloy,Individual Wire,Storage Tool,food testing,Gear grinding machine,Forming mold,Optical Instruments,other rubber,reducer
• Similar models:NMB R-620ZZ ZEN 62301-RS INA CSXD050 NTN 6203LLB INA GE80-KRR-B KBC UC204 ISO 63801ZZ Timken G1009KRRB NSK 6903L11 SIGMA 8602
• BEARING POWER International Trading Co.,Ltd. specialize in SFR1-4 products，there is large inventory of AST SFR1-4 . We has been built up long-term cooperation with AST company, could make a bulk order of the SFR1-4 Which AST SFR1-4 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
  2307K	35	80	31	NACHI	Self-Aligning Ball Bearings
  30234JR	170	310	57	KOYO	Tapered Roller Bearings
  3210	50	90	30,2	SIGMA	Angular Contact Ball Bearings
  53330U	150	250	83,7	KOYO	Thrust Ball Bearings
  6815-2RD	75	95	10	KOYO	Deep Groove Ball Bearings
  61952-MA	260	360	46	NKE	Deep Groove Ball Bearings
  AST40 25080	250	255		AST	Plain Bearings
  ASTEPB 0304-03	3	4,5		AST	Plain Bearings
  HM89448/10	36,512	76,2	29,37	CX	Tapered Roller Bearings
  MR93	3	9	2,5	ZEN	Deep Groove Ball Bearings
  N 213	65	120	23	ISB	Cylindrical Roller Bearings
  RB207-20	31.75	72	42,9	KOYO	Deep Groove Ball Bearings
  T-LL778149/LL778110	584,2	685,8	49,212	NTN	Tapered Roller Bearings
  UCTX05	25			CX	Bearing Units
  GEZ312TE.2RS	3.7500	5.8750	3.2812	SKF	SPHERICAL PLAIN BEARINGS
  TRD6074	3.7500	4.6250		Torrington	THRUST NEEDLE BEARINGS
  NU2215E	75	130	31	STEYR	CYLINDRICAL ROLLER BEARINGS
  6010RS	50	80	16	SKF	DEEP GROOVE BALL BEARINGS
  6206	62	30	16	STEYR	DEEP GROOVE BALL BEARINGS
  NU-2234E	170	310	86	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS