(dimensions in mm)

Bearing Type - NJ

Bore Dia (d) - 55.0000

Outer Dia (D) - 120.0000

Width (B) - 29.0000

Radius (min) (rs) - 2.000

Dynamic Load Rating (Cr) - 134,000

Static Load Rating (Cor) - 138,000

Max Speed (Grease) (X1000 RPM) - 5

Max Speed (Oil) (X1000 RPM) - 6

Max. Shaft Shoulder Dia. Inner (Li) - 70.5

Min. Housing Shoulder Dia., Outer (Lo) - 106.5

Weight (g) - 1,845.00

Precision - RBEC 1

Standard Clearance - C0

Material - 52100 Chrome steel, or equivalent

Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".

This bearing is also available with the HJ end plate for the inner race.

Suffix definitions are listed in the Nomenclature Technical document.

This bearing is also available with a retaining ring groove in the outer race, and it can be supplied with the ring (suffix NR) or without the ring (suffix N). Please see the Technical Information Sheet for the groove and ring dimensions.

• Model Number:NJ311 EMA
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-22
• Application:joint protection,Perfusion device,Animal Tracking,pneumatic,Cleaning equipment,vacuum filter,hinge industry,trolley,steam Hydraulic control element,instrument,ultra-quiet generators
• Similar models:NACHI NUP2311 FAG NU311-E-TVP2 CX NU2311E ISO NJF2311V SIGMA NUP2311 CYSD NUP311E NSK NU311EM NTN NUP2311E CX NJ311E INA RSL182311-A
• BEARING POWER International Trading Co.,Ltd. specialize in NJ311EMA products，there is large inventory of AST NJ311 EMA . We has been built up long-term cooperation with AST company, could make a bulk order of the NJ311 EMA Which AST NJ311EMA 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
  22315CK	75	160	55	AST	Spherical Roller Bearings
  2558/2523	30,162	69,85	23,812	FBJ	Tapered Roller Bearings
  45291/45220-B	57,15	104,775	30,958	Timken	Tapered Roller Bearings
  61816-2RS	80	100	10	CX	Deep Groove Ball Bearings
  BK 0908	9	13	8	NBS	Needle Roller Bearings
  GEZM 308 ES	139,7	88,9	133,35	SKF	Plain Bearings
  C4022K30MB	110	170	60	SKF	Cylindrical Roller Bearings
  EC-6208LLB	40	80	18	NTN	Deep Groove Ball Bearings
  GWSQ110-102		90		AST	Deep Groove Ball Bearings
  NAO70X100X30	70	100		KOYO	Needle Roller Bearings
  NJ 217 ECM	150	85	28	SKF	Thrust Ball Bearings
  NR1.16.1644.400-1PPN	1536	1752	68	ISB	Thrust Roller Bearings
  RVU323942	32	39		KOYO	Needle Roller Bearings
  SBPFL207-23	36,5125		32	KOYO	Bearing Units
  SIL70TXE-2LS	70			SKF	Plain Bearings
  R180L	80	140	26	HOFF	CYLINDRICAL ROLLER BEARINGS
  S71919CDGAP4A	95	130	18	SKF	ANGULAR CONTACT BALL BEARINGS
  NU236E	180	320	52	SKF	CYLINDRICAL ROLLER BEARINGS
  5301-ZZ	12	37	19	CONSOLIDATED	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  57x72x10mm	57	72	10	CONSOLIDATED	OIL SEALS