(dimensions in mm)

Bearing Type - straight bore

Bore Dia (d) - 55.0000

Outer Dia (D) - 120.0000

Width (B) - 29.0000

Radius (min) (rs) - 2.000

Dynamic Load Rating (Cr) - 133,000

Static Load Rating (Cor) - 137,000

Max Speed (Grease) (X1000 RPM) - 3

Max Speed (Oil) (X1000 RPM) - 4

Weight (g) - 1,740.00

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" = 2.5

Basic Radial Load Factor "Y2" = 3.8

Basic Radial Load Factor "Y0" = 2.5

• Model Number: 21311MB
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Spherical Roller Bearings
• Update date：2025-12-09
• Application:Internal thread type,electromagnetic clutch,noise reduction equipment,Hydraulic Rama,hydraulic cylinder buffer,generator,lifting equipment Hoisting hoist,Water Monitoring,Cylinder Pneumatic Treatment Element,power protection,Equipment
• Similar models:FAG 21311-E1-K SNR 21311V SKF 21311EK SKF 21311E NSK 21311EAE4 CX 21311KCW33 KOYO 21311RH AST 21311MBKW33 AST 21311MBW33 CX 21311KCW33+AH311
• BEARING POWER International Trading Co.,Ltd. specialize in 21311MB products，there is large inventory of AST 21311MB . We has been built up long-term cooperation with AST company, could make a bulk order of the 21311MB Which AST 21311MB 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
  07100-SA/07196D+X1S-07100	25,4	50,005	33,34	Timken	Tapered Roller Bearings
  24088 K30W33	440	650	212	ISO	Spherical Roller Bearings
  32204XR	20	47	19,25	KOYO	Tapered Roller Bearings
  4T-HM218238/HM218210	80	147	40	NTN	Tapered Roller Bearings
  580X/572	82,55	139,992	36,512	Timken	Tapered Roller Bearings
  6022ZNR	110,000	170,000	28,000	NTN	Deep Groove Ball Bearings
  61911-2RSR	55	80	13	FAG	Deep Groove Ball Bearings
  7222CPA	110	200	38	KOYO	Angular Contact Ball Bearings
  811/850 M	1000	850	120	SKF	Thrust Roller Bearings
  BK3012	30	37	12	ISO	Cylindrical Roller Bearings
  EGB4530-E40	45	50	30	INA	Plain Bearings
  NU1076-M6E-MA6	380	560	82	NKE	Cylindrical Roller Bearings
  NU2320 EMA	100	215	73	AST	Cylindrical Roller Bearings
  QJ212	60	110	22	ISO	Angular Contact Ball Bearings
  RCJTY16	16			INA	Bearing Units
  TC2840	44,45	63,5	1,984	INA	Thrust Roller Bearings
  SDE30OP	30	47		KOYO	Linear Bearings
  YB 2016	31,75	38,1	25,4	IKO	Needle Roller Bearings
  3201J2Z	12	32	15.9	INA	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  H-3040x73/16	200	240		CONSOLIDATED	ADAPTERS