d - 55 mm

D - 120 mm

B - 29 mm

d₁ - - 75.34 mm

D₂ - - 103.7 mm

r_1,2 - min. - 2 mm

d_a - min. - 66 mm

d_a - max. - 75.2 mm

D_a - max. - 109 mm

r_a - max. - 2 mm

Basic dynamic load rating - C - 74.1 kN

Basic static load rating - C₀ - 45 kN

Fatigue load limit - P_u - 1.9 kN

Reference speed - 12000 r/min

Limiting speed - 8000 r/min

Calculation factor - k_r - 0.03

Calculation factor - f₀ - 13.1

Mass bearing - 1.389 kg

• Model Number: 6311-Z
• Inner Diameter：120mm Outer Diameter：55mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:Infrared Technology,Spectrum Products,container finishing,sucker industry,security equipment,CNC,aerial work equipment,medical equipment,animal,marine test,noise inspection
• Similar models:NKE 6311-RSR PFI 6311-2RSC3 KBC 6311UU NKE 6311-N NSK 6311DDU NTN 6311 NKE 6311-NR NTN 6311LLUNR SKF 6311-ZNR NACHI 6311N
• BEARING POWER International Trading Co.,Ltd. specialize in 6311-Z products，there is large inventory of SKF 6311-Z . We has been built up long-term cooperation with SKF company, could make a bulk order of the 6311-Z Which SKF 6311-Z 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
  22326CYW502	130	280	93	AST	Spherical Roller Bearings
  2LA-BNS009CLLBG/GNP42	45	75	16	NTN	Angular Contact Ball Bearings
  33213 TN9/Q	120	65	41	SKF	Tapered Roller Bearings
  369A/363	47,625	90	20	Fersa	Tapered Roller Bearings
  6844-RS	220	270	24	CYSD	Deep Groove Ball Bearings
  E 210 7CE3	10	30	9	SNFA	Angular Contact Ball Bearings
  EXP212	60			SNR	Bearing Units
  GE 460 ES	460	620	218	CX	Plain Bearings
  NK26/16	26	34	16	SKF	Needle Roller Bearings
  NNCF48/530-V	530	615	118	NKE	Cylindrical Roller Bearings
  NUP2084	420	620	118	ISO	Cylindrical Roller Bearings
  RNUP1323	65,000	160,000	43,550	NTN	Cylindrical Roller Bearings
  VEX 10 /NS 7CE1	10	26	8	SNFA	Angular Contact Ball Bearings
  T-93708/93125	180	317,5	63,5	NTN	Tapered Roller Bearings
  3203	17	40	17.5	FAG	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  NAF75x105x30	75	105	30	FAG (Old No.)	NEEDLE BEARINGS
  SDAF-524	4.1875	10.5000		SKF	PILLOW BLOCKS
  117-KS	85	130	22	MRC	DEEP GROOVE BALL BEARINGS
  220SD23	220	460	145	Torrington (Old No.)	SPHERICAL ROLLER BEARINGS
  NF305	25	62	17	SKF	CYLINDRICAL ROLLER BEARINGS