d - 36,512 mm

D - 85,725 mm

T - 30,162 mm

B - 30,162 mm

C - 23,812 mm

R - 0,8 mm

r - 3,3 mm

a - -8,1 mm

Da - 81 mm

db - 48 mm

da - 47 mm

Db - 73 mm

Aa - 1,5 mm

Ab - 2,1 mm

Weight - 0,9 Kg

Basic static load rating (C0) - 148 kN

Factor (G1) - 37,8

Factor (G2) - 13,5

Factor (Cg) - 0,0224

Factor (K) - 1,45

Basic dynamic load rating (C90) - 29,8

Basic dynamic load rating (Ca90) - 20,5

Basic dynamic load rating (C1) - 115 kN

Calculation factor (e) - 0,4

Calculation factor (Y) - 1,49

• Model Number: 3878/3820
• Inner Diameter：36,512mm Outer Diameter：85,725mm Width：30,162mm
• Type：Tapered Roller Bearings
• Update date：2025-12-13
• Application:special broaching machine,Optical Instruments,electronic materials,marine test,extruder,ship special,laser devices,DC generators,test strip,Tool,horizontal processing
• Similar models:ISO 3878/3820 KOYO 3878/3820 CX 3878/3820 Timken 3878/3820 NACHI 3878/3820 Fersa 3878/3820
• BEARING POWER International Trading Co.,Ltd. specialize in 3878/3820 products，there is large inventory of Timken 3878/3820 . We has been built up long-term cooperation with Timken company, could make a bulk order of the 3878/3820 Which Timken 3878/3820 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.

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  618/4	4	9	2,5	ISO	Deep Groove Ball Bearings
  6206DDU	30	62	16	NSK	Deep Groove Ball Bearings
  6904DD	20	37	9	KBC	Deep Groove Ball Bearings
  AC-6304	20	52	15	NTN	Deep Groove Ball Bearings
  E 200/120 /S 7CE3	120	215	40	SNFA	Angular Contact Ball Bearings
  GE90XS/K	90	140	76	LS	Plain Bearings
  JH-98	14,288	20,638	12,7	Timken	Needle Roller Bearings
  NJ2203 E	17	40	16	AST	Cylindrical Roller Bearings
  SR6	9,525	22,225	5,55752	AST	Deep Groove Ball Bearings
  63801	12	21	7	ELGES	DEEP GROOVE BALL BEARINGS
  NU29/500E	500	670	100	SKF	CYLINDRICAL ROLLER BEARINGS
  7318PJDU	90	190	43	MRC	ANGULAR CONTACT BALL BEARINGS
  N219E	95	170	32	SKF	CYLINDRICAL ROLLER BEARINGS
  NUP2306E	30	72	27	SKF	CYLINDRICAL ROLLER BEARINGS
  UELFU209-112T	1.7500			NTN	PILLOW BLOCKS
  NC208	40	80	18	RHP	CYLINDRICAL ROLLER BEARINGS
  51388				STEYR	THRUST BALL BEARINGS
  94612	1.1250	1.6250	.7500	CONSOLIDATED	JOURNAL ROLLER ASSEMBLIES