(dimensions in mm)

Bearing Type - Open

Bore Dia (d) - 8.0000

Outer Dia (D) - 28.0000

Width (B) - 9.0000

Radius (min) (rs) - 0.300

Dynamic Load Rating (Cr) - 3,879

Static Load Rating (Cor) - 1,586

Max Speed (Grease) (X1000 RPM) - 28

Max Speed (Oil) (X1000 RPM) - 34

Max. Shaft Shoulder Dia. Inner (Li) - 14.5

Min. Housing Shoulder Dia., Outer (Lo) - 21.3

Ball Qty - 7

Ball Dia (Dw) - 4.7620

Weight (g) - 28.10

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. Also, the equivalent ISO classes.

• Model Number: 638H
• Inner Diameter：8mm Outer Diameter：28mm Width：9mm
• Type：Deep Groove Ball Bearings
• Update date：2025-04-19
• Application:marine analysis and testing equipment,Plastic Equipment,beverage production,wall industry,animal,Industrial,Cleaning equipment,extruder,metal mold,Insect Count,Gripper Swing
• Similar models:ISB 638/4-ZZ ISO 63800 SKF W638/5-2Z ISO 63800ZZ ISB SS638/1,5-ZZ SKF 638/5-2Z FBJ 1638 ISO 63802-2RS NTN 638Z ISO 63801-2RS
• BEARING POWER International Trading Co.,Ltd. specialize in 638H products，there is large inventory of AST 638H . We has been built up long-term cooperation with AST company, could make a bulk order of the 638H Which AST 638H 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.

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  24038-E1-K30	190	290	100	FAG	Spherical Roller Bearings
  24156 K30W33	280	460	180	ISO	Spherical Roller Bearings
  61888-M	440	540	46	FAG	Deep Groove Ball Bearings
  ASTEPBW 2442-015	22	42		AST	Plain Bearings
  F607ZZ	7	19	6	ISB	Deep Groove Ball Bearings
  HK1516	15	21	16	NTN	Needle Roller Bearings
  HK2526	25	32	26	SKF	Needle Roller Bearings
  ML2508	2,5	8	2,8	KOYO	Deep Groove Ball Bearings
  NJ2218-E-M6	90	160	40	NKE	Cylindrical Roller Bearings
  NU1007-M1	35	62	14	FAG	Cylindrical Roller Bearings
  RS-4992E4	460	620	160	NSK	Cylindrical Roller Bearings
  72805-2RS	25	37	8	ELGES	ANGULAR CONTACT BALL BEARINGS
  9108-UK	40	68	15	MRC	ANGULAR CONTACT BALL BEARINGS WITH SPLIT INNER RACE
  RWCT-23B	4.4530	4.8437		INA	THRUST ROLLER BEARINGS
  NU2208E	40	80	23	STEYR	CYLINDRICAL ROLLER BEARINGS
  ML310	50	110	27	Rollway	CYLINDRICAL ROLLER BEARINGS
  98848	1.3750	2.3750	3.0000	RBC	JOURNAL ROLLER ASSEMBLIES
  0-5				SKF	THRUST BALL BEARINGS
  SAF-3053/16...ROLLER	5.1875			CONSOLIDATED	PILLOW BLOCKS