(dimensions in mm)

Bearing Type - Sealed

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) - 4

Max Speed (Oil) (X1000 RPM) - 7

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

Min. Housing Shoulder Dia., Outer (Uo) - 111.000

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.

Two rubber seals = (2RS), also available with a single rubber seal = (RS).

• Model Number: 6311-2RS
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Deep Groove Ball Bearings
• Update date：2025-12-16
• Application:Medical room equipment,Reflective Materials Industrial fabrics,injection molding machine,X-ray Equipment,Hydraulic Rama,noise inspection,machine lathe,climb ladder,Oral Equipment,medical equipment,other CNC
• Similar models:NKE 6311-2Z-NR SKF 6311-2RS1/HC5C3WT SKF 6311-2Z CX 6311 NTN 6311ZZNR KOYO 6311NR NKE 6311-2RSR CYSD 6311-ZZ FAG 6311 CX 6311ZZ
• BEARING POWER International Trading Co.,Ltd. specialize in 6311-2RS products，there is large inventory of AST 6311-2RS . We has been built up long-term cooperation with AST company, could make a bulk order of the 6311-2RS Which AST 6311-2RS 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
  1654	28,575	63,5	15,875	FBJ	Deep Groove Ball Bearings
  170RIN663	431,8	556		Timken	Cylindrical Roller Bearings
  23952-K-MB-W33	260	360	75	NKE	Spherical Roller Bearings
  484/472	70	120	29,794	CX	Tapered Roller Bearings
  390A/3920	63,5	112,712	26,967	Timken	Tapered Roller Bearings
  88DC62225	440	620	225	KOYO	Cylindrical Roller Bearings
  AXK1528	15	28	2	Timken	Needle Roller Bearings
  BTM101410A	9.8	13.8	10	KOYO	Needle Roller Bearings
  CRB 10020	100	150	20	IKO	Thrust Roller Bearings
  E-4R7405	370	480	230	NTN	Cylindrical Roller Bearings
  G1110KPPB4	41,275	80	42,86	Timken	Deep Groove Ball Bearings
  K20X24X17	20	24		INA	Needle Roller Bearings
  HCB71907-E-T-P4S	35	55	10	FAG	Angular Contact Ball Bearings
  LM767749D/LM767710/LM767710D	406,4	546,1	288,925	NTN	Tapered Roller Bearings
  K35X40X26ZW	35,000	40,000		NTN	Needle Roller Bearings
  N1011RSTPKR	55	81	18	NSK	Cylindrical Roller Bearings
  NJ2026	130	200	42	ISO	Cylindrical Roller Bearings
  NUP 2307 E	35	80	31	NACHI	Cylindrical Roller Bearings
  32014X	70	110	25	SKF	TAPERED ROLLER BEARINGS
  ER-28	3.3465	1.7500	1.0937	CONSOLIDATED	BALL BEARING