d - 12,7 mm

D - 34,987 mm

T1 - 4,63 mm

B - 10,988 mm

C - 8,73 mm

R - 1,3 mm

a - -2,5 mm

D1 - 38,062 mm

Da - 29 mm

db - 18,5 mm

C2 - 2,362 mm

da - 17 mm

Weight - 0,06 Kg

Basic static load rating (C0) - 11,5 kN

Factor (G1) - 2,3

Factor (G2) - 4,1

Factor (K) - 1,29

Basic dynamic load rating (C90) - 3,16

Basic dynamic load rating (Ca90) - 2,45

Basic dynamic load rating (C1) - 12,2 kN

Calculation factor (e) - 0,45

Calculation factor (Y) - 1,32

• Model Number:A4050/A4138B
• Inner Diameter：12,7mm Outer Diameter：34,987mm Width：10,988mm
• Type：Tapered Roller Bearings
• Update date：2025-12-11
• Application:motorcycle,die casting mold,flow control valve,crimping tools,hydraulic pump,pump accessories,sewage pump,Industrial,Air,Medical printer,steam Hydraulic control element
• Similar models:SNR EC44050S01 Timken A4050/A4138 Timken A4050/A4138B KOYO A4050/A4138 NTN 4T-A4050/A4138 FBJ A4050/A4138 NSK A4050/A4138
• BEARING POWER International Trading Co.,Ltd. specialize in A4050/A4138B products，there is large inventory of Timken A4050/A4138B . We has been built up long-term cooperation with Timken company, could make a bulk order of the A4050/A4138B Which Timken A4050/A4138B 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
  23030CDKE4	150	225	56	NSK	Spherical Roller Bearings
  23896 K	480	600	90	ISB	Spherical Roller Bearings
  3478/3420	34,925	79,375	29,37	Timken	Tapered Roller Bearings
  432209U	45	85	55	NTN	Tapered Roller Bearings
  4T-CRI-1265	60	140	67	NTN	Tapered Roller Bearings
  6819	95	120	13	FBJ	Deep Groove Ball Bearings
  7007 CE/P4AH1	62	35	14	SKF	Angular Contact Ball Bearings
  ASTT90 7070	70	75		AST	Plain Bearings
  NK7/12	7,000	14,000	12,000	NTN	Needle Roller Bearings
  NKJS100	100	135	32	Timken	Needle Roller Bearings
  NU 303 ECP	47	17	14	SKF	Cylindrical Roller Bearings
  NU2330E	150	320	108	NTN	Cylindrical Roller Bearings
  NU2940	200,000	280,000	48,000	NTN	Cylindrical Roller Bearings
  RNAF223013	22	30	13	JNS	Needle Roller Bearings
  VKBA7469	43	78	44	SKF	Angular Contact Ball Bearings
  XLS-57/8	5.8750	8.0000	1.0000	FAG	DEEP GROOVE BALL BEARINGS
  313.2Z	65	140	33	FAG	DEEP GROOVE BALL BEARINGS
  18AK	105	190	36	RIV	DEEP GROOVE BALL BEARINGS
  CFF-3	.1900		.3125	Spherco	ROD ENDS
  6218Z	90	160	30	STEYR	DEEP GROOVE BALL BEARINGS