(dimensions in inches)

Bearing Type - single row assembly

Bore Dia (d) - 1.3750

Outer Dia (D) - 2.8750

Width (B) - 0.9375

Outer Width (Bo) - 0.7500

Inner Width (Bi) - 0.9688

Radius (min) (rs) - 0.138

Radius (min) (rs1) - 0.031

Weight (g) - 464.00

Material - 52100 chrome steel or equiavelent

The assembly part number lists the cone part number first and then the cup part number.

• Model Number:25878/25821
• Inner Diameter：34,925mm Outer Diameter：73,025mm Width：23,8125mm
• Type：Tapered Roller Bearings
• Update date：2025-12-16
• Application:mobile toilet,Water Monitoring,wall industry,fabric products,rock drilling machinery,motor,supporting facilities,Industrial,Traffic Fire Protection Equipment Security equipment,medical equipment,Microwave Equipment
• Similar models:KOYO 25878R/25820 Fersa 25878/25820 AST 25878/25821 Timken 25878/25820 FBJ 25878/25821 NSK 25878/25820 Timken 25878/25821 CX 25878/25821 ISO 25878/25821 NTN 4T-25878/25820
• BEARING POWER International Trading Co.,Ltd. specialize in 25878/25821 products，there is large inventory of AST 25878/25821 . We has been built up long-term cooperation with AST company, could make a bulk order of the 25878/25821 Which AST 25878/25821 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
  2205-K-2RS-TVH-C3 + H305	20	52	18	FAG	Self-Aligning Ball Bearings
  22336 CCK/W33	380	180	126	SKF	Spherical Roller Bearings
  24184B	420	700	280	NTN	Spherical Roller Bearings
  32324U	120	260	90,5	NTN	Tapered Roller Bearings
  357/353D+X1S-357	40	90,119	50,795	Timken	Tapered Roller Bearings
  4T-1380/1329	22,225	53,975	19,368	NTN	Tapered Roller Bearings
  53200	10	26		ISO	Thrust Ball Bearings
  EX201-08	12,7	47	43,5	SNR	Deep Groove Ball Bearings
  G209KPPB2	43,94	85	30	CYSD	Deep Groove Ball Bearings
  KUC075 2RD	190,5	209,55	12,7	KOYO	Deep Groove Ball Bearings
  NLJ2	50,8	101,6	20,6375	RHP	Self-Aligning Ball Bearings
  SAKB5F	5			SKF	Plain Bearings
  SI8C	8			LS	Plain Bearings
  TAF 9511536	95	115	36	IKO	Needle Roller Bearings
  UCT316	80			KOYO	Bearing Units
  38112RS	55	72	13	INA	DOUBLE ROW ANGULAR CONTACT BALL BEARINGS
  AD5056	280	420	106	American	CYLINDRICAL ROLLER BEARINGS
  30303A	17	47	14	FAG	TAPERED ROLLER BEARINGS
  513/500				STEYR	THRUST BALL BEARINGS
  KU-100XPO-2RS	10.0000	10.7500	.5000	CONSOLIDATED	FOUR POINT ANGULAR CONTACT BALL BEARINGS