(dimensions in mm)

Bearing Type - straight bore

Bore Dia (d) - 40.0000

Outer Dia (D) - 90.0000

Width (B) - 23.0000

Radius (min) (rs) - 1.500

Dynamic Load Rating (Cr) - 74,000

Static Load Rating (Cor) - 69,500

Max Speed (Grease) (X1000 RPM) - 5

Max Speed (Oil) (X1000 RPM) - 6

Weight (g) - 780.00

Material - 52100 Chrome steel, or equivalent

Inner ring guided, machined brass cage.

Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".

Basic Radial Load Factor "e" = 0.26

Basic Radial Load Factor "Y1" = 2.6

Basic Radial Load Factor "Y2" = 3.9

Basic Radial Load Factor "Y0" = 2.6

• Model Number:21308MB
• Inner Diameter：40mm Outer Diameter：90mm Width：23mm
• Type：Spherical Roller Bearings
• Update date：2025-12-18
• Application:Perfusion device,non-motor vehicle Electric car,generator,chemical raw materials and reagents,universal category,Gear grinding machine,Medical equipment,Cylinder Type,tobacco machinery,industrial fans,Laser Devices
• Similar models:FAG 21308-E1 NTN 21308C AST 21308MBK CX 21308KCW33+H308 KOYO 21308RHK ISB 21308 FAG 21308-E1-K SNR 21308V CX 21308KCW33 ISB 21308K+AH308
• BEARING POWER International Trading Co.,Ltd. specialize in 21308MB products，there is large inventory of AST 21308MB . We has been built up long-term cooperation with AST company, could make a bulk order of the 21308MB Which AST 21308MB 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
  22326EF800	130,000	280,000	93,000	SNR	Thrust Roller Bearings
  7815CDF	75	95	10	CYSD	Angular Contact Ball Bearings
  51413	65	140	56	KOYO	Thrust Ball Bearings
  71901 A	12	24	6	ISO	Angular Contact Ball Bearings
  7888	440,000	540,000	46,000	NTN	Angular Contact Ball Bearings
  7980B	400	540	65	NSK	Angular Contact Ball Bearings
  BHTM2830	28	37	30	KOYO	Needle Roller Bearings
  GEC440XS-2RS	440	600	218	LS	Plain Bearings
  HK 2520	25	32	20	NBS	Needle Roller Bearings
  NKS20	20	32	20	AST	Needle Roller Bearings
  RNA4007 V	46	62	27	CX	Needle Roller Bearings
  751128SP.P5				FAG	ANGULAR CONTACT THRUST BALL BEARINGS
  TP-148				American	THRUST ROLLER BEARINGS
  EW-13/8	1.3750	2.1875		FBC	THRUST BALL BEARINGS
  6815DDU	75	95	10	NSK	DEEP GROOVE BALL BEARINGS
  AH3134	170	160		STEYR	WITHDRAWAL SLEEVES
  43204	20	47	14	New Departure	DEEP GROOVE BALL BEARINGS
  5212-K	60	110	36.5	MRC	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  6202-SEE	15	35	11	SNR	DEEP GROOVE BALL BEARINGS
  LS-11-2RS	1.1250	2.5000	.6250	CONSOLIDATED	DEEP GROOVE BALL BEARINGS