(dimensions in mm)

Bearing Type - double row self-aligning

Bore Dia (d) - 55.0000

Outer Dia (D) - 120.0000

Width (B) - 43.0000

Radius (min) (rs) - 2.000

Dynamic Load Rating (Cr) - 76,500

Static Load Rating (Cor) - 24,000

Max Speed (Grease) (X1000 RPM) - 4,800

Max Speed (Oil) (X1000 RPM) - 6,000

Max. Shaft Shoulder Dia. Inner (Li) - 64.0

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

Weight (g) - 2,030.00

Precision - A1

Standard Clearance - C0

Material - 52100 Chrome steel (or equivalent)

The maximum recommended angular misalignment is 4 degrees. When the bearing is misaligned, the applied dynamic radial load must be less than 10% of the dynamic capacity.

This bearing is also available with a tapered bore, add a suffix "K" after the four digit number.

• Model Number:2311
• Inner Diameter：55mm Outer Diameter：120mm Width：43mm
• Type：Self-Aligning Ball Bearings
• Update date：2025-12-18
• Application:textile machinery,molding machine,die casting mold,medical equipment,impression material,climb ladder,Industrial,Vacuum generator,lathe,Generator,training beds etc
• Similar models:ISB 2311 ISB 2311K NTN 2311SK CX 2311 SIGMA 2311 ISO 2311 ISO 2311K NKE 2311-K+H2311 SNR 2311K SKF 2311K+H2311
• BEARING POWER International Trading Co.,Ltd. specialize in 2311 products，there is large inventory of AST 2311 . We has been built up long-term cooperation with AST company, could make a bulk order of the 2311 Which AST 2311 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
  5S-2LA-HSE030G/GNP42	150	225	35	NTN	Angular Contact Ball Bearings
  ASTT90 19060	190	195		AST	Plain Bearings
  BLP206-20	31.75		30	KOYO	Bearing Units
  GAC200S	200	310	70	AST	Plain Bearings
  GE 020 XES-2RS	20	42	25	CX	Plain Bearings
  GEEW63ES	63	95	63	LS	Plain Bearings
  NF 206	30	53,5	16	NSK	Cylindrical Roller Bearings
  L-415X5ZZ	1,5	4	2	NMB	Deep Groove Ball Bearings
  N 305	25	53	17	NACHI	Cylindrical Roller Bearings
  NK70/25	70	85	25	JNS	Needle Roller Bearings
  NUP2307-E-MPA	35	80	31	NKE	Cylindrical Roller Bearings
  RNA 4960	340	420	118	IKO	Needle Roller Bearings
  TAM 1215	12	19	15	IKO	Needle Roller Bearings
  S6304.2RSR	20	52	15	FAG	DEEP GROOVE BALL BEARINGS
  206-SZZX	30	62	16	MRC	DEEP GROOVE BALL BEARINGS
  LS-25	7.0000	12.0000	1.7500	FED	DEEP GROOVE BALL BEARINGS
  200RJ02	200	360	58	Torrington	CYLINDRICAL ROLLER BEARINGS
  2202	15	35	14	CONSOLIDATED	SELF
  SDAF-240	8.7500	7.6250		CONSOLIDATED	PILLOW BLOCKS
  13/4x17/8x2	1.7500	1.8750	2.0000	CONSOLIDATED	JOURNAL ROLLER BEARING OUTER RACES