(dimensions in inches)

Bearing Type - single row assembly

Bore Dia (d) - 1.9375

Outer Dia (D) - 3.6718

Width (B) - 1.1875

Outer Width (Bo) - 0.9375

Inner Width (Bi) - 1.1930

Radius (min) (rs) - 0.138

Radius (min) (rs1) - 0.031

Weight (g) - 833.00

Material - 52100 chrome steel or equiavelent

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

• Model Number: 3781/3730
• Inner Diameter：49,2125mm Outer Diameter：93,26372mm Width：30,1625mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:office equipment,woodworking machinery,Automobile,beverage production,Pest Monitoring,hydraulic cylinder buffer,Industrial Electromechanical,Performance test,equipment,container finishing,axle lathe
• Similar models:AST 3781/3730 NACHI 3781/3730 FBJ 3781/3720 CX 3781/3720 Timken 3781/3720 ISO 3781/3720 NTN 4T-3781/3720 Timken 3781/3729D+X1S-366
• BEARING POWER International Trading Co.,Ltd. specialize in 3781/3730 products，there is large inventory of AST 3781/3730 . We has been built up long-term cooperation with AST company, could make a bulk order of the 3781/3730 Which AST 3781/3730 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
  24096CAK30E4	480	700	218	NSK	Spherical Roller Bearings
  30310	50	110	29,25	NTN	Tapered Roller Bearings
  3315-2RS	75	160	68,3	CX	Angular Contact Ball Bearings
  36990/36920	227,012	177,8	30,162	SKF	Tapered Roller Bearings
  45291/45221	57,15	104,775	30,162	ISO	Tapered Roller Bearings
  569868.H195	82	138	110	FAG	Tapered Roller Bearings
  713619080				FAG	Wheel Bearings
  7316BDF	80	170	39	CYSD	Angular Contact Ball Bearings
  F18036	85	150	28	Fersa	Deep Groove Ball Bearings
  HH249949/HH249910	247,65	406,4	115,888	KOYO	Tapered Roller Bearings
  HR30310DJ	50	110	29,25	NSK	Tapered Roller Bearings
  NAO35x50x17	35	50		CX	Cylindrical Roller Bearings
  NU2210-E-MPA	50	90	23	NKE	Cylindrical Roller Bearings
  SCE1616	25,4	31,75	25,4	INA	Needle Roller Bearings
  UCP306	30		43	NACHI	Bearing Units
  HA316	80	105		SKF	ADAPTERS
  R-2AZZ-ST	.1250	.5000	.1719	MRC	DEEP GROOVE BALL BEARINGS
  140TVB581	14.0000	17.5000		Torrington	THRUST BALL BEARINGS
  KB160ARO	16.0000	16.6250	.3125	KAYDON	ANGULAR CONTACT BALL BEARINGS
  NUP-326	130	280	58	CONSOLIDATED	CYLINDRICAL ROLLER BEARINGS