d - 25,4 mm

D - 56,896 mm

T - 19,368 mm

B - 19,837 mm

C - 15,875 mm

ra1 max. - 1,3 mm

a - 6,5 mm

Da - 49 mm

db - 30 mm

ra max. - 0,8 mm

da - 30,5 mm

Db - 51 mm

Weight - 0,238 Kg

Basic dynamic load rating (C) - 42,5 kN

Basic static load rating (C0) - 46,5 kN

(Grease) Lubrication Speed - 7 200 r/min

(Oil) Lubrication Speed - 9 600 r/min

Calculation factor (e) - 0,31

Calculation factor (Y0) - 1,07

Calculation factor (Y2) - 1,95

• Model Number:4T-1780/1729
• Inner Diameter：25,4mm Outer Diameter：56,896mm Width：19,368mm
• Type：Tapered Roller Bearings
• Update date：2023-03-12
• Application:plastic molding,electronic materials,Storage Tool,Gas turbine,Vertical machining,journal lathe,Seals,hydraulic pump,non-motor vehicle Electric car,wheel lathe,ultra-quiet generators
• Similar models:ISO 1780/1729 Fersa 1780/1729 NTN 4T-1780/1729 Timken 1780/1730 ZVL 1780/1729 CX 1780/1729 Timken 1780/1729 Timken 1780/1738X Timken 1780/1729B KOYO 1780/1730
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-1780/1729 products，there is large inventory of NTN 4T-1780/1729 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-1780/1729 Which NTN 4T-1780/1729 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
  52310	50	95	58	NACHI	Thrust Ball Bearings
  5312N	60	130	54	NACHI	Angular Contact Ball Bearings
  6009-2RS	45	75	16	CX	Deep Groove Ball Bearings
  617/3	3	6	2	CX	Deep Groove Ball Bearings
  61813-2Z-Y	65	85	10	FAG	Deep Groove Ball Bearings
  7024C	120	180	28	NTN	Angular Contact Ball Bearings
  7234 A	170	310	52	ISO	Angular Contact Ball Bearings
  806078	17	52	17	FAG	Deep Groove Ball Bearings
  EGS25260-E40-S3E				INA	Plain Bearings
  F684-2RS	4	9	4	ZEN	Deep Groove Ball Bearings
  K 55x60x20	55	60		NBS	Needle Roller Bearings
  NNU4944C1NAP5	220	300	80	NTN	Cylindrical Roller Bearings
  PF 1.1/2 FM	38,1			SKF	Bearing Units
  S3306-2RS	30	72	30,2	ZEN	Angular Contact Ball Bearings
  UCFL305	25			NACHI	Bearing Units
  9138K	190	290	46	FAF	DEEP GROOVE BALL BEARINGS
  MM9308WI-2HDU	.9385	62	.6250	FAF	ANGULAR CONTACT BALL SCREW SUPPORT BEARINGS
  NUP303E	17	47	14	SKF	CYLINDRICAL ROLLER BEARINGS
  HK1616	22		16	INA	NEEDLE BEARINGS
  K-16x20x8	16	20	8	CONSOLIDATED	NEEDLE BEARINGS