d - 26,988 mm

D - 66,421 mm

T - 23,812 mm

B - 25,433 mm

C - 19,05 mm

ra1 max. - 1,3 mm

a - 9,3 mm

Da - 58 mm

db - 33 mm

ra max. - 1,5 mm

da - 35 mm

Db - 60 mm

Weight - 0,429 Kg

Basic dynamic load rating (C) - 64,5 kN

Basic static load rating (C0) - 72,5 kN

(Grease) Lubrication Speed - 6 200 r/min

(Oil) Lubrication Speed - 8 200 r/min

Calculation factor (e) - 0,25

Calculation factor (Y0) - 1,3

Calculation factor (Y2) - 2,36

• Model Number: 4T-2688/2631
• Inner Diameter：26,988mm Outer Diameter：66,421mm Width：23,812mm
• Type：Tapered Roller Bearings
• Update date：2025-12-16
• Application:paint paint,Food testing,Digital Generator,crimping tools,small appliances,Seals,animal,chemical instruments,powder metallurgy,ventilator anesthesia machine etc,printing equipment
• Similar models:Timken 26880/26821 NSK 26884/26823 Timken 26880/26822A Timken 26883/26820 FBJ 26882/26824 CX 26886/26822 ISO 26882/26820 NTN 4T-26880/26822 ISO 26882/26822A Timken 26882/26822
• BEARING POWER International Trading Co.,Ltd. specialize in 4T-2688/2631 products，there is large inventory of NTN 4T-2688/2631 . We has been built up long-term cooperation with NTN company, could make a bulk order of the 4T-2688/2631 Which NTN 4T-2688/2631 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
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  31307	35	80	22,75	NKE	Tapered Roller Bearings
  6892D2	460,000	580,000	180,000	NTN	Deep Groove Ball Bearings
  7213AC	65	120	23	NACHI	Angular Contact Ball Bearings
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  KR 16 X	6	16	28	SKF	Cylindrical Roller Bearings
  NN3980 K	400	540	106	CX	Cylindrical Roller Bearings
  NNU4952K V	260	360	100	ISO	Cylindrical Roller Bearings
  NUP2224	120	215	58	ISO	Cylindrical Roller Bearings
  TLAM 3520	35	42	20	IKO	Needle Roller Bearings
  UKF209	40		50	CX	Bearing Units
  NU1896	480	600	56	FAG	CYLINDRICAL ROLLER BEARINGS
  C1834HCUL	170	215	22	Barden	ANGULAR CONTACT BALL BEARINGS
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  231/800	800	1280	375	Torrington	SPHERICAL ROLLER BEARINGS
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  XW-31/8				CONSOLIDATED	THRUST BALL BEARINGS
  AH-3936x170	180	170		CONSOLIDATED	WITHDRAWAL SLEEVES