(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：2025-04-23
• Application:pressure control valve,joint protection,Medical room equipment,screen filter,special broaching machine,marine analysis and testing equipment,ventilation equipment,Storage Device,other lathe,rolling machine,Gear grinding machine
• Similar models:KOYO 25878R/25820 FBJ 25878/25821 ISO 25878/25821 NTN 4T-25878/25820 Fersa 25878/25820 Timken 25878/25821 AST 25878/25821 NSK 25878/25820 Timken 25878/25820 CX 25878/25821
• 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
  305275-1	140	210	66	KOYO	Angular Contact Ball Bearings
  6088	440,000	650,000	94,000	NTN	Deep Groove Ball Bearings
  4R7617	380,000	520,000	290,000	NTN	Cylindrical Roller Bearings
  51316	80	140	44	ISB	Thrust Ball Bearings
  61806-2RS	30	42	7	CRAFT	Deep Groove Ball Bearings
  7016HVDUJ74	80	125	44	SNR	Angular Contact Ball Bearings
  AST11 WC42	40	66		AST	Plain Bearings
  AST850SM 130100	130	135		AST	Plain Bearings
  AXW17	17	33	3,2	INA	Needle Roller Bearings
  BXRE006-2HRS	30	55	13	INA	Needle Roller Bearings
  F-234405.2	14,1	24,25		INA	Thrust Ball Bearings
  GAZ 014 SA	22,225	36,525	12,192	SIGMA	Plain Bearings
  NK50/25-TV	50	62	25	INA	Needle Roller Bearings
  VSA 25 0855 N	755	997		INA	Thrust Ball Bearings
  567400	10	32	9	FAG	YOKE TYPE TRACK ROLLERS
  7315B.U(A/O)	75	160	37	FAG	ANGULAR CONTACT BALL BEARINGS
  CF-15/8-SB	.6250	1.6250	.8750	McGill	NEEDLE BEARINGS
  NKIB5901	12	24	16	SKF	NEEDLE BEARINGS
  K-05008XPO	50	66	8	CONSOLIDATED	FOUR POINT ANGULAR CONTACT BALL BEARINGS
  NU-2980E	400	540	82	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS