(dimensions in mm)

Bearing Type - Single Row, Heavy Duty

Outer Dia (D) - 85.0000

Width (B) - 25.0000

Dynamic Load Rating (Cr) - 60,000

Static Load Rating (Cor) - 108,000

Max Speed (Oil) (X1000 RPM) - 7,000

Shaft (Fw) - 68.000

Weight (g) - 275.00

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: RNA4912
• Inner Diameter：68mm Outer Diameter：85mm Width：25mm
• Type：Needle Roller Bearings
• Update date：2025-12-14
• Application:large agricultural machinery,gear type,hinge industry,air conditioning tools,other rubber,bio-chemical,tapping machine,chromatography,squeeze machine etc,comprehensive experiment,generator
• Similar models:NTN NA4912R NTN RNA4912R NTN RNA4912S SKF RNA4912 KOYO NA4912 AST RNA4912 INA NA4912 JNS RNA4912 JNS NA4912 IKO RNA4912UU
• BEARING POWER International Trading Co.,Ltd. specialize in RNA4912 products，there is large inventory of AST RNA4912 . We has been built up long-term cooperation with AST company, could make a bulk order of the RNA4912 Which AST RNA4912 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
  1202	15	35	11	AST	Self-Aligning Ball Bearings
  16048	240	360	37	KOYO	Deep Groove Ball Bearings
  21312E	60	130	31	SKF	Spherical Roller Bearings
  22309-E1-K-T41A + H2309	40	100	36	FAG	Spherical Roller Bearings
  23030	150	225	56	ISB	Spherical Roller Bearings
  2581/2523	33,338	69,85	23,812	ISO	Tapered Roller Bearings
  34307/34478	77,788	121,442	24,608	Timken	Tapered Roller Bearings
  47681/47620	80,962	133,35	33,338	CX	Tapered Roller Bearings
  53176/53375	44,45	95,25	30,958	ISO	Tapered Roller Bearings
  F-93463.1	25	37	22,2	INA	Complex Bearings
  LM20UU	20	32	30,5	Samick	Linear Bearings
  N 1084	420	570	90	NACHI	Cylindrical Roller Bearings
  TL23244CAE4	220	400	144	NSK	Spherical Roller Bearings
  W 619/1 R	1	4	1,6	SKF	Deep Groove Ball Bearings
  3304B.2RSR	20	52	22.2	FAG	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  XW-21/2				NH	THRUST BALL BEARINGS
  6228K	140	250	42	SKF	DEEP GROOVE BALL BEARINGS
  NA4910.2RS	50	72	22	Torrington	NEEDLE BEARINGS
  RLS-271/2-LL	9.5000	15.1250	2.0000	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS
  SQ-108-102	1.1250	3.1496	1.4375	CONSOLIDATED	AGRICULTURAL BALL BEARINGS