(dimensions in mm)

Bearing Type - Single Row, Heavy Duty

Outer Dia (D) - 30.0000

Width (B) - 13.0000

Dynamic Load Rating (Cr) - 11,000

Static Load Rating (Cor) - 14,600

Max Speed (Oil) (X1000 RPM) - 21,000

Shaft (Fw) - 22.000

Weight (g) - 22.20

Material - 52100 Chrome steel, or equivalent

The bearing must be used with a hardened inner ring, or a hardened shaft.

Some sizes are available with either a single seal or two seals.

• Model Number: RNA4903
• Inner Diameter：22mm Outer Diameter：30mm Width：13mm
• Type：Needle Roller Bearings
• Update date：2025-12-10
• Application:Medical printer,quality inspection equipment,orthodontic material,atomizer class,static control,stirrer,extruder,chemical raw materials and reagents,electromagnetic clutch,walking Food processing machinery and equipment,hydraulic pump
• Similar models:NBS NA4903 NTN NA4903L CRAFT NA4903-2RS CRAFT NA4903 INA RNA4903-XL SKF NA4903RS IKO RNA4903UU NTN NA4903LL JNS RNA4903 KOYO RNA4903
• BEARING POWER International Trading Co.,Ltd. specialize in RNA4903 products，there is large inventory of AST RNA4903 . We has been built up long-term cooperation with AST company, could make a bulk order of the RNA4903 Which AST RNA4903 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
  1305	25	62	17	NSK	Self-Aligning Ball Bearings
  23026EAKW33	130,000	200,000	52,000	SNR	Thrust Roller Bearings
  23952 CCK/W33 + OH 3952 H	360	240	75	SKF	Tapered Roller Bearings
  292/530E	530	710	109	NACHI	Thrust Roller Bearings
  619/600	600	800	90	CX	Deep Groove Ball Bearings
  7004HVDUJ74	20	42	24	SNR	Angular Contact Ball Bearings
  713640360				FAG	Wheel Bearings
  CRF-33118 A	90,000	150,000	45,000	CRAFT	Wheel Bearings
  CRI-16301	812,8	1066,8	190,5	NTN	Tapered Roller Bearings
  JLM104949/JLM704910	50	84	22	FBJ	Tapered Roller Bearings
  L116149/L116110D+L116149XC	82,55	115,888	47,625	Timken	Tapered Roller Bearings
  LPAR 12	12	22	32	SKF	Plain Bearings
  NU2220-E-MPA	100	180	46	NKE	Cylindrical Roller Bearings
  RUS2206E	37,500	62,000	20,000	NTN	Cylindrical Roller Bearings
  T-EE923095/923175G2	241,3	444,5	101,6	NTN	Tapered Roller Bearings
  W 61901-2RS1	24	12	6	SKF	Deep Groove Ball Bearings
  LR202-2RSR(NPPU)	15	40	11	INA	YOKE TYPE TRACK ROLLERS
  CCF-13/8-SB	.5000	1.3750	.7500	McGill	NEEDLE BEARINGS
  51112				SNR	THRUST BALL BEARINGS
  CRHSBC-12	.4375	.7500	.5000	CONSOLIDATED	NEEDLE BEARINGS