(dimensions in inches)

Bearing Type - Shielded with Extended Inner

Bore Dia (d) - 0.2500

Outer Dia (D) - 0.6250

Outer Width (Bo) - 0.1960

Inner Width (Bi) - 0.2272

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:RW4ZZ
• Inner Diameter：6,35mm Outer Diameter：15,875mm Width：mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:Safety protection,Laser Devices,powder metallurgy,electromyography machine,Broadcasting System,test laboratory equipment and accessories,axle lathe,agriculture,Industrial Electromechanical,Pneumatic Actuator,reinforced machinery
• Similar models:NTN SC07A42LL RHP MJ1/2-RS ISO R6ZZ NTN 87502 ISB WB1630138 NSK 6201DDU NSK 6900L11DD1 Fersa 608 KOYO UC218 ISB 61809-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in RW4ZZ products，there is large inventory of AST RW4ZZ . We has been built up long-term cooperation with AST company, could make a bulk order of the RW4ZZ Which AST RW4ZZ 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
  230/900 KCW33+H30/900	900	1280	280	CX	Spherical Roller Bearings
  23280 KCW33+H3280	400	720	256	ISO	Spherical Roller Bearings
  3187/3120	30,162	72,626	30,162	Timken	Tapered Roller Bearings
  5210A	50	90	30.2	NACHI	Angular Contact Ball Bearings
  4T-07100S/07204	25,4	51,994	15,011	NTN	Tapered Roller Bearings
  5S-HSB103C	65	100	18	NTN	Angular Contact Ball Bearings
  6308ZZNR	40,000	90,000	23,000	NTN	Deep Groove Ball Bearings
  7208	40	80	18	NACHI	Angular Contact Ball Bearings
  BK354516	35	45	16	CX	Cylindrical Roller Bearings
  MLE7006CVUJ74S	30	55	13	SNR	Angular Contact Ball Bearings
  N212E	60,000	110,000	22,000	NTN	Cylindrical Roller Bearings
  N226 E	130	230	40	CX	Cylindrical Roller Bearings
  NCF2917 V	85	120	22	CX	Cylindrical Roller Bearings
  NNU4936KC1NAP4	180	250	69	NTN	Cylindrical Roller Bearings
  PCM 202315 E	20	23	15	SKF	Plain Bearings
  VKBA 3521				SKF	Wheel Bearings
  317DR	17	47	19	HOFF	DEEP GROOVE BALL BEARINGS
  6220-2RSNR	180	.361	34	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  81307			10	CONSOLIDATED	THRUST ROLLER BEARINGS
  305806-2RS	30	72	23.8	CONSOLIDATED	YOKE TYPE TRACK ROLLERS