(dimensions in mm)

Bearing Type - Open

Bore Dia (d) - 55.0000

Outer Dia (D) - 120.0000

Width (B) - 29.0000

Radius (min) (rs) - 2.000

Dynamic Load Rating (Cr) - 71,600

Static Load Rating (Cor) - 45,000

Max Speed (Grease) (X1000 RPM) - 6

Max Speed (Oil) (X1000 RPM) - 7

Max. Shaft Shoulder Dia. Inner (Li) - 72.5

Min. Housing Shoulder Dia., Outer (Lo) - 111.0

Ball Qty - 8

Ball Dia (Dw) - 20.6380

Weight (g) - 1,350.00

Precision - A1

Standard Clearance - C0

Material - 52100 Chrome steel (or equivalent)

ABEC Grades 1, 3, 5, 7, and 9 are available.

• Model Number: 6311
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-17
• Application:CNC,Industry,Forging machine,plastic rolling,Forming mold,intermediate,hydraulic cylinder buffer,Tool,spreader series,Small air generators,generator
• Similar models:NTN 6311LUNR CRAFT 6311-2RS NACHI 6311ZZE ISO 6311-2RS NACHI 6311ZENR KOYO 6311-2RU ISB SS6311-2RS NSK 6311VV NSK 6311N NACHI 6311JT
• BEARING POWER International Trading Co.,Ltd. specialize in 6311 products，there is large inventory of AST 6311 . We has been built up long-term cooperation with AST company, could make a bulk order of the 6311 Which AST 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
  200RUB32APV	200	360	128	NSK	Spherical Roller Bearings
  35BW05C4	35	72	24	NSK	Deep Groove Ball Bearings
  7011CPA	55	90	18	KOYO	Angular Contact Ball Bearings
  81110	50	70	14	SIGMA	Thrust Roller Bearings
  AR120-30	120	180	60	NSK	Tapered Roller Bearings
  AST800 3025	30	34		AST	Plain Bearings
  GF 50 DO	50	75	35	INA	Plain Bearings
  RSF-4828E4	140	175	35	NSK	Cylindrical Roller Bearings
  NJ208-E-TVP3	40	80	18	NKE	Cylindrical Roller Bearings
  NN3026 K	130	200	52	ISO	Cylindrical Roller Bearings
  NNU6018 V	90	140	90	CX	Cylindrical Roller Bearings
  T811	203,2	419,1	92,075	Timken	Thrust Roller Bearings
  TVK5477JL	54	77	6	KOYO	Needle Roller Bearings
  H3160	300	380		FAG	ADAPTERS
  N072			1.7910	SKF	LOCKNUTS
  9106	30	55	13	FED	DEEP GROOVE BALL BEARINGS
  SSZ99R-4A	.2500	.7500	.2812	New Departure	DEEP GROOVE BALL BEARINGS
  NF-328	140	300	62	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  3/4x13/16x13/4	.7500	.8125	1.7500	CONSOLIDATED	JOURNAL ROLLER BEARING OUTER RACES
  6410-ZZ	50	130	31	CONSOLIDATED	DEEP GROOVE BALL BEARINGS