(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：2025-04-19
• Application:Medical room equipment,Seals,office outdoor camping equipment,light therapy instrument,chemical instruments,reinforced machinery,municipal machinery,Switch,magnetic elements,Technical Equipment,garden machinery
• Similar models:ISO 21311W33 NTN 21311 ISB 21311 SKF 21311EK ISO 21311KCW33+AH311 AST 21311MBKW33 ISB 21311K+AHX311 ISB 21311K ISB 21311EKW33+H311 ISO 21311KW33
• 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
  16009 ZZ	45	75	10	ISO	Deep Groove Ball Bearings
  22313-E1-K	65	140	48	FAG	Spherical Roller Bearings
  32030-X-XL	150	225	48	FAG	Tapered Roller Bearings
  5324W	120	260	104,78	Timken	Angular Contact Ball Bearings
  59201/59412	50,8	104,775	36,512	ISO	Tapered Roller Bearings
  ESFTE210	50			SNR	Bearing Units
  G209KPPB2	43,94	85	30	CYSD	Deep Groove Ball Bearings
  NH305	25	62	17	ISO	Cylindrical Roller Bearings
  NJ10/670	670	980	136	ISO	Cylindrical Roller Bearings
  NKI 70/25	70	95	25	NBS	Needle Roller Bearings
  NUP326	130	280	58	NTN	Cylindrical Roller Bearings
  PC30550023CS	30	55	23	PFI	Deep Groove Ball Bearings
  RNU 202 ECP	35	19,3	11	SKF	Cylindrical Roller Bearings
  UCPA205-14	22,225		34,1	KOYO	Bearing Units
  30334	170	360	72	SKF	TAPERED ROLLER BEARINGS
  STO15ZZ.DZ	15	35	16	Torrington	NEEDLE BEARINGS
  31313	65	140	33	STEYR	TAPERED ROLLER BEARINGS
  6008ZNR	40	68	15	STEYR	DEEP GROOVE BALL BEARINGS
  1416M	80	200	57	CONSOLIDATED	SELF
  MG-309-2RS-3	5.0015	45	27	CONSOLIDATED	MAST GUIDE BEARINGS