(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：2025-12-10
• Application:security equipment,position switch,tapered grinder,motor,dynamic blood pressure,electromyography machine,outdoor equipment,vacuum suction cup,office equipment,electrocardiograph,Anti-defibrillation pacing
• Similar models:CYSD NU2304E SNR NJ2304EG15 NSK NU2304 NACHI 23044A2X CX NH2304E ISO NJ2304 NACHI 23048A2X NACHI 23044EK FBJ NU2304 NACHI 23040E
• 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
  231/500 CW33	500	830	264	CX	Spherical Roller Bearings
  2RT15002	730,000	1280,000	225,000	NTN	Thrust Roller Bearings
  33220 A	100	180	63	CX	Tapered Roller Bearings
  51324-MP	120	210	70	FAG	Thrust Ball Bearings
  6024-2RSR	120	180	28	FAG	Deep Groove Ball Bearings
  6324Z	120,000	260,000	55,000	NTN	Deep Groove Ball Bearings
  7221BDT	105	190	36	CYSD	Angular Contact Ball Bearings
  7201C	12	32	10	CYSD	Angular Contact Ball Bearings
  BA 2220 Z	34,925	41,275	31,75	IKO	Needle Roller Bearings
  K11590-11520	15,875	42,863	14,288	FAG	Tapered Roller Bearings
  HSS7028-C-T-P4S	140	210	33	FAG	Angular Contact Ball Bearings
  K20X26X17BE	20	26		Timken	Needle Roller Bearings
  K45X53X20	45,000	53,000		NTN	Needle Roller Bearings
  NU30/530 E	530	780	185	CX	Cylindrical Roller Bearings
  RNAF506220	50	62	20	JNS	Needle Roller Bearings
  W 619/8 R-2RS1	19	8	6	SKF	Deep Groove Ball Bearings
  61814-Y	70	90	10	ELGES	DEEP GROOVE BALL BEARINGS
  SL184930	150	210	60	INA	CYLINDRICAL ROLLER BEARINGS
  89456			48	INA	THRUST ROLLER BEARINGS
  MS-28	10.0000	18.5000	3.2500	FED	DEEP GROOVE BALL BEARINGS