(dimensions in mm)

Bearing Type - NJ

Bore Dia (d) - 20.0000

Outer Dia (D) - 52.0000

Width (B) - 21.0000

Radius (min) (rs) - 1.100

Dynamic Load Rating (Cr) - 42,000

Static Load Rating (Cor) - 38,800

Max Speed (Grease) (X1000 RPM) - 11

Max Speed (Oil) (X1000 RPM) - 14

Max. Shaft Shoulder Dia. Inner (Li) - 27.5

Min. Housing Shoulder Dia., Outer (Lo) - 45.5

Weight (g) - 250.00

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:NJ2304 EM
• Inner Diameter：20mm Outer Diameter：52mm Width：21mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-12
• Application:flow control valve,hot and cold box,Hydraulic Equipment,molding machine,wheel lathe,experimental equipment,printing equipment,Machine tools,Laser Devices,medical equipment,X-ray Equipment
• Similar models:NACHI 23040A2X AST NJ2304EM NACHI 23040EK FBJ NJ2304 SKF RNU2304ECP KOYO NU2304 FAG NUP2304-E-TVP2 NACHI 23048A2XK SNR NU2304EG15 CYSD N2304E
• BEARING POWER International Trading Co.,Ltd. specialize in NJ2304EM products，there is large inventory of AST NJ2304 EM . We has been built up long-term cooperation with AST company, could make a bulk order of the NJ2304 EM Which AST NJ2304EM 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
  22340-K-MB-W33+H2340	200	420	138	NKE	Spherical Roller Bearings
  2580/2523	31.75	69,85	23,812	Timken	Tapered Roller Bearings
  6904L11ZZ	20	37	9	NSK	Deep Groove Ball Bearings
  6918N	90	125	18	CYSD	Deep Groove Ball Bearings
  KV43X50X51.3ZW	43,000	50,000		NTN	Needle Roller Bearings
  MKM3820	38	48	20	KOYO	Needle Roller Bearings
  NF215	75	130	25	KOYO	Cylindrical Roller Bearings
  NN3022	110	155	45	NTN	Cylindrical Roller Bearings
  RS-5009	45	75	40	NSK	Cylindrical Roller Bearings
  SL01-4912ZZ	60,000	85,000	25,000	NTN	Cylindrical Roller Bearings
  81144			15	FAG	THRUST ROLLER BEARINGS
  W61904-2RS1	20	37	9	SKF	DEEP GROOVE BALL BEARINGS
  1316	80	170	39	FED	DEEP GROOVE BALL BEARINGS
  17TAB04	17	47	15	Nachi	ANGULAR CONTACT BALL SCREW SUPPORT BEARINGS
  94632	1.1250	1.6250	2.0000	Hyatt	JOURNAL ROLLER ASSEMBLIES
  70RIN298	7.0000	12.0000	1.7500	Torrington	CYLINDRICAL ROLLER BEARINGS
  6220NR	100	180	34	CONSOLIDATED	DEEP GROOVE BALL BEARINGS
  NA-4968	340	460	118	CONSOLIDATED	NEEDLE BEARINGS
  81117			7.5	CONSOLIDATED	THRUST ROLLER BEARINGS
  BT-87-392	8.7500	11.7500		CONSOLIDATED	THRUST BALL BEARINGS