(dimensions in mm)

Bearing Type - Open

Bore Dia (d) - 4.0000

Outer Dia (D) - 9.0000

Width (B) - 2.5000

Radius (min) (rs) - 0.100

Dynamic Load Rating (Cr) - 545

Static Load Rating (Cor) - 182

Max Speed (Grease) (X1000 RPM) - 53

Max Speed (Oil) (X1000 RPM) - 63

Max. Shaft Shoulder Dia. Inner (Li) - 5.2

Min. Housing Shoulder Dia., Outer (Lo) - 7.5

Ball Qty - 7

Ball Dia (Dw) - 1.5880

Weight (g) - 0.65

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: 684H
• Inner Diameter：4mm Outer Diameter：9mm Width：2,5mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-12
• Application:Textile Industry Accessories and Accessories,rolling mill roll neck and slowdown device,food testing,other rubber,CNC,electronic components,lathe,Machine tool accessories,other mold,Anesthetic Equipment,Rolling mill
• Similar models:KOYO SB684556 KOYO 684/1BZ CYSD 6844 ZEN F684-2RS CYSD 6840-RS CYSD 6844-Z FBJ F684ZZ NACHI 6844 CYSD 6848-Z KOYO 684
• BEARING POWER International Trading Co.,Ltd. specialize in 684H products，there is large inventory of AST 684H . We has been built up long-term cooperation with AST company, could make a bulk order of the 684H Which AST 684H 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
  32007JR/2YD	30	62	18	KOYO	Tapered Roller Bearings
  3318	90	190	73	FAG	Angular Contact Ball Bearings
  45338	190	320	104	KOYO	Tapered Roller Bearings
  47487/47420	69,85	120	32,545	ISO	Tapered Roller Bearings
  7009DB	45	75	16	NACHI	Angular Contact Ball Bearings
  BE263322ASYB1	26	33	21,8	KOYO	Needle Roller Bearings
  F692X	2,5	7	2,5	ZEN	Deep Groove Ball Bearings
  GE 440 DW	440	600	218	INA	Plain Bearings
  HK0408	4	8	8	KOYO	Needle Roller Bearings
  RSF-4964E4	320	440	118	NSK	Cylindrical Roller Bearings
  NU2204 ET	20	47	18	NSK	Cylindrical Roller Bearings
  S7013 ACB/P4A	100	65	18	SKF	Angular Contact Ball Bearings
  SLX260X440X145	260,000	440,000	145,000	NTN	Cylindrical Roller Bearings
  TUP1 10.20	10	12		CX	Plain Bearings
  30211A	55	100	21	FAG	TAPERED ROLLER BEARINGS
  6011	55	90	18	FAG	DEEP GROOVE BALL BEARINGS
  2MMV314WI-CRDU	70	150	35	FAF	ANGULAR CONTACT BALL BEARINGS
  NATR5X	5	16	12	INA	NEEDLE BEARINGS
  NUTR-20	20	47	25	CONSOLIDATED	NEEDLE BEARINGS
  SAF-234	7.4375	6.4375		CONSOLIDATED	PILLOW BLOCKS