(dimensions in inches)

Bearing Type - single row assembly

Bore Dia (d) - 2.6250

Outer Dia (D) - 4.4375

Width (B) - 1.1875

Outer Width (Bo) - 0.9375

Inner Width (Bi) - 1.1830

Radius (min) (rs) - 0.217

Radius (min) (rs1) - 0.031

Weight (g) - 1,141.00

Material - 52100 chrome steel or equiavelent

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

• Model Number:3994/3925
• Inner Diameter：66,675mm Outer Diameter：112,7125mm Width：30,1625mm
• Type：Tapered Roller Bearings
• Update date：2025-12-10
• Application:respirator,Spectrum Products,Hydraulic Equipment,Antenna Industry,Cylinder Micro,paper processing machine,filter paper products,Industrial,circulating pump,special broaching machine,top industry
• Similar models:Timken 3994/3920 KOYO 3994/3925 NTN 4T-3994/3920 NACHI 3994/3920 FBJ 3994/3920 KBC 3994/3920 AST 3994/3925 NSK 3994/3920 Timken 3994/3925 Timken 3994/3926
• BEARING POWER International Trading Co.,Ltd. specialize in 3994/3925 products，there is large inventory of AST 3994/3925 . We has been built up long-term cooperation with AST company, could make a bulk order of the 3994/3925 Which AST 3994/3925 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
  22212EMW33	60,000	110,000	28,000	SNR	Spherical Roller Bearings
  25590/20	45,618	82,931	23,812	PFI	Tapered Roller Bearings
  51136	180	225	34	NACHI	Thrust Ball Bearings
  618/7 ZZ	7	14	5	CX	Deep Groove Ball Bearings
  7026UCG/GNP4	130	200	33	NTN	Angular Contact Ball Bearings
  7320-BECB-MP	100	215	47	NKE	Angular Contact Ball Bearings
  F693	3	8	3	ISO	Deep Groove Ball Bearings
  N 314 ECM	150	70	35	SKF	Thrust Ball Bearings
  NNU4992	460	620	160	KOYO	Cylindrical Roller Bearings
  NU 308	40	90	23	NACHI	Cylindrical Roller Bearings
  PCJT1-3/8	34,925			INA	Bearing Units
  R 4B ZZ	6,35	15,875	4,978	NSK	Deep Groove Ball Bearings
  RAE20-NPPB	20	47	21,4	NKE	Deep Groove Ball Bearings
  UC214	70	125	74.6	NACHI	Deep Groove Ball Bearings
  YAS75	75			FAF	PILLOW BLOCKS
  NUP403	17	62	17	SKF	CYLINDRICAL ROLLER BEARINGS
  STO30ZZ	30	62	25	Torrington	NEEDLE BEARINGS
  HK2020.2RS	26		20	SKF	NEEDLE BEARINGS
  280RU92	280	500	6.5000	Torrington (Old No.)	CYLINDRICAL ROLLER BEARINGS
  EPR-12			.440	CONSOLIDATED	END COVERS FOR SAF TYPE PILLOW BLOCKS