d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

r min. - 2 mm

da min. - 65 mm

Da max. - 110 mm

ra max. - 2 mm

Weight - 1,69 Kg

Basic dynamic load rating (C) - 145 kN

Basic static load rating (C0) - 163 kN

(Grease) Lubrication Speed - 3 700 r/min

(Oil) Lubrication Speed - 4 800 r/min

Calculation factor (e) - 0,25

Calculation factor (Y0) - 2,63

Calculation factor (Y1) - 2,69

Calculation factor (Y2) - 4,01

• Model Number: 21311K
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Spherical Roller Bearings
• Update date：2025-12-18
• Application:Plastic Equipment,coal mill,experimental equipment,tapping machine,mechanical and electrical,metallurgical mold,flexible processing,lifting chain,electromagnet,tooth filling,embroidery cloth
• Similar models:FAG 21311-E1 KOYO 21311RH ISB 21311 FAG 21311-E1-K+AHX311 CX 21311KCW33+H311 SKF 21311E ISB 21311K+AHX311 SNR 21311VK CX 21311KCW33+AH311 ISO 21311KCW33+AH311
• BEARING POWER International Trading Co.,Ltd. specialize in 21311K products，there is large inventory of NTN 21311K . We has been built up long-term cooperation with NTN company, could make a bulk order of the 21311K Which NTN 21311K 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
  32332DF	160	340	242	NTN	Tapered Roller Bearings
  7236 CDB	180	320	104	ISO	Angular Contact Ball Bearings
  7311 A-UX	55	120	58	CX	Angular Contact Ball Bearings
  748S/742	76,2	150,089	44,45	FBJ	Tapered Roller Bearings
  GE100XF/Q	100	150	70	LS	Plain Bearings
  BS2-2318-2RS5/VT143	190	90	73	SKF	Spherical Roller Bearings
  GE 65 SX	65	100	23	Enduro	Plain Bearings
  GE50C	50	75	35	LS	Plain Bearings
  HR32220J	100	180	49	NSK	Tapered Roller Bearings
  K25X31X17	25	31		INA	Needle Roller Bearings
  NKS 32	32	47	22	NBS	Needle Roller Bearings
  R2AZZ	3,175	12,7	4,36626	AST	Deep Groove Ball Bearings
  SA201-8	12,7	40	19	FYH	Deep Groove Ball Bearings
  319	95	200	45	FAG	DEEP GROOVE BALL BEARINGS
  NAF17x30x13	17	30	13	FAG (Old No.)	NEEDLE BEARINGS
  11209TN9	45	85	19	SKF	SELF
  93648	1.1250	1.5000	3.0000	Hyatt	JOURNAL ROLLER ASSEMBLIES
  K-35x41x12	35	41	12	CONSOLIDATED	NEEDLE BEARINGS
  SILC70ES	70		49	CONSOLIDATED	ROD ENDS
  1015	75	160	84	CONSOLIDATED	THRUST BALL BEARINGS