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：2025-12-18
• Application:metallurgy,vertical processing,Plastic Equipment,food safety,rubber products machinery and equipment,Doppler,PVC,Industry,marine analysis and testing equipment,pressure control valve,Control
• Similar models:SKF 331780A Fersa 1780/1729 Timken 1780/1730 ZVL 1780/1729 ISO 1780/1729 KOYO 1780/1730 Timken 1780/1729B NTN 4T-1780/1729 FBJ 1780/1729 Timken 1780/1738X
• 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
  100PCR2201	100			NSK	Cylindrical Roller Bearings
  21316 K+AH316	75	170	39	ISB	Spherical Roller Bearings
  2207 K	35	72	23	NSK	Self-Aligning Ball Bearings
  22313W33	65	140	48	ISO	Spherical Roller Bearings
  B5	25	52	27	NACHI	Deep Groove Ball Bearings
  6207Z	35,000	72,000	17,000	NTN-SNR	Deep Groove Ball Bearings
  65225/65550-B	57,15	139,7	44,45	Timken	Tapered Roller Bearings
  7224 ADF	120	215	80	ISO	Angular Contact Ball Bearings
  B7207-C-2RSD-T-P4S	35	72	17	FAG	Angular Contact Ball Bearings
  HK4016D	40,000	47,000	16,000	NTN	Needle Roller Bearings
  HK5024.2RS	50	58	24	Timken	Needle Roller Bearings
  HM212046/HM212010	63,5	122,238	38,1	Timken	Tapered Roller Bearings
  L555249/L555210	292,1	374,65	47,625	Timken	Tapered Roller Bearings
  NU2932	160	220	36	ISO	Cylindrical Roller Bearings
  RNAO25x37x16	25	37	16	ISO	Cylindrical Roller Bearings
  UCFL206	30			CRAFT	Bearing Units
  195-CDS	95	170	32	HOFF	ANGULAR CONTACT BALL BEARINGS WITH SPLIT INNER RACE
  1BK	10	35	11	RIV	DEEP GROOVE BALL BEARINGS
  FPAG412	4.7500	6.7500	1.0000	SKF	ANGULAR CONTACT BALL BEARINGS
  SN-319..1319	95	-	120	CONSOLIDATED	PILLOW BLOCKS