(dimensions in mm)

Bearing Type - tapered 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) - 770.00

Material - 52100 Chrome steel, or equivalent

Inner ring guided, machined brass cage.

Tapered Bore, taper = 1:12

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: 21308MBK
• Inner Diameter：40mm Outer Diameter：90mm Width：23mm
• Type：Spherical Roller Bearings
• Update date：2025-12-16
• Application:Dental Equipment,impression material,metallurgical mold,other CNC,meat products machine,organic raw materials,Handling machinery and various industrial machinery,rehabilitation training equipment,paper processing machine,Storage Tool,Cylinder Pneumatic Treatment Element
• Similar models:SNR 21308V SNR 21308VK NTN 21308C FAG 21308-E1 FAG 21308-E1-K+AH308 CX 21308CW33 ISO 21308KCW33+AH308 ISO 21308KCW33+H308 ISB 21308K+AH308 KOYO 21308RH
• BEARING POWER International Trading Co.,Ltd. specialize in 21308MBK products，there is large inventory of AST 21308MBK . We has been built up long-term cooperation with AST company, could make a bulk order of the 21308MBK Which AST 21308MBK 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
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  B2610	41,275	50,8	15,88	KOYO	Needle Roller Bearings
  54405+U405	15	60	49,7	NKE	Thrust Ball Bearings
  6010ZZ	50	80	16	CRAFT	Deep Groove Ball Bearings
  6404ZZ	20,000	72,000	19,000	NTN	Deep Groove Ball Bearings
  71815-B-TVH	75	95	10	FAG	Angular Contact Ball Bearings
  BGSB 358235	1660	1200	300	SKF	Thrust Roller Bearings
  CX449				CX	Wheel Bearings
  GE 70 XS K	70	110	58	ISB	Plain Bearings
  HSS7000-E-T-P4S	10	26	8	FAG	Angular Contact Ball Bearings
  LMBS24OP	38,1	60,325		Samick	Linear Bearings
  NF 221	105	168.8		NACHI	Cylindrical Roller Bearings
  QJ218-N2-MPA	90	160	30	FAG	Angular Contact Ball Bearings
  X30215/Y30215	75	130	27,25	Timken	Tapered Roller Bearings
  RSL182317	85	6.4180	60	INA	CYLINDRICAL ROLLER BEARING
  FLBC1.2-4	1.2	4	1.8	NTN	DEEP GROOVE BALL BEARINGS
  UQ20312DTL7	60	130	31	New Departure	ANGULAR CONTACT BALL BEARINGS
  RNA4908	62		22	Torrington	NEEDLE BEARINGS
  6328	140	300	62	SKF	DEEP GROOVE BALL BEARINGS