d - 55 mm

D - 120 mm

B - 29 mm

C - 29 mm

r min. - 2 mm

da min. - 64 mm

da max - 74 mm

Da max. - 111 mm

ra max. - 2 mm

Weight - 1,37 Kg

Basic dynamic load rating (C) - 71,5 kN

Basic static load rating (C0) - 45 kN

(Grease) Lubrication Speed - 5 800 r/min

(Oil) Lubrication Speed - 6 800 r/min

Calculation factor (f0) - 13,2

• Model Number:6311
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-11
• Application:office outdoor camping equipment,rolling mill roll neck and slowdown device,Industrial Adhesive,packaging materials,atomizer class,drawing die,car instrument,thin metal materials,municipal machinery,Oral Image,dynamic blood pressure
• Similar models:KOYO 6311-2RS NACHI 6311-2NSE NKE 6311-N CX 6311 Fersa 6311-2RS ISB 6311-ZZNR KBC 6311DD KOYO 6311N NTN 6311ZZD2 CYSD 6311
• BEARING POWER International Trading Co.,Ltd. specialize in 6311 products，there is large inventory of NTN 6311 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 6311 Which NTN 6311 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
  231/500 EKW33+AOHX31/500	480	830	264	ISB	Spherical Roller Bearings
  30328U	140	300	67,75	NTN	Tapered Roller Bearings
  53326U	130	225	80,3	KOYO	Thrust Ball Bearings
  33206	30	62	25	ISB	Tapered Roller Bearings
  4T-33885/33821	44,45	95,25	27,783	NTN	Tapered Roller Bearings
  6200	10	30	9	CYSD	Deep Groove Ball Bearings
  63803	17	26	7	ISO	Deep Groove Ball Bearings
  67388/67320	127	203,2	46,038	Timken	Tapered Roller Bearings
  7218 B	90	160	30	ISO	Angular Contact Ball Bearings
  7820CDB/G019UP-5	100	125	26	NTN	Angular Contact Ball Bearings
  CRB 13025 UU	130	190	25	IKO	Thrust Roller Bearings
  CRD-3413	170	280	76	NTN	Tapered Roller Bearings
  IJ123032				ILJIN	Angular Contact Ball Bearings
  NJ2309 E	45	100	36	CX	Cylindrical Roller Bearings
  S7228 CD/P4A	140	250	42	SKF	Angular Contact Ball Bearings
  S6000	10	26	8	FAG	DEEP GROOVE BALL BEARINGS
  MJT7E	7.0000	13.5000	2.5000	RHP	ANGULAR CONTACT BALL BEARINGS
  DLR220				RIV	THRUST BALL BEARINGS WITH SPHERICAL SEATING RINGS
  IR-566432	3.5000		2.0100	Torrington	NEEDLE BEARINGS
  6015NR	75	115	20	SKF	DEEP GROOVE BALL BEARINGS