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Eternal Bearing Industrial Limited
Eternal Bearing Industrial Limited
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American standard taper roller bearing inch size 688TD-672 double rows

Eternal Bearing Industrial Limited
Eternal Bearing Industrial Limited
City: Hong Kong
Province/State: Hong Kong
Country/Region: China
Tel: 86-510-82610466
Contact Person:
Ms Cindy Gan

American standard taper roller bearing inch size 688TD-672 double rows

Brand Name : Timken
Model Number : 688TD/672
Certification : ISO9001
Place of Origin : U.S.A
MOQ : 2pcs
Price : Negotiation
Payment Terms : L/C at sight, D/P at sight, T/T, Western Union
Supply Ability : 3000pcs per month
Delivery Time : 5days
Packaging Details : single color box, carton or wooden case, pallet
Material : Chrome steel
Bearing type : Taper roller bearing
Structure : Double rows
Feature : low speed, heavy load
Cage : Steel cage
Application : wheel hub
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Series

675

Cone Part Number

688TD

Cup Part Number

672A

Design Units

Imperial

Bearing Weight

17.60 lb8.000 Kg

Cage Type

Stamped Steel

Aa - Cage-Cone Backface Clearance

0 in0 mm

Dimensions

d - Bore

3.9453 in100.211 mm

D - Cup Outer Diameter

6.6250 in168.275 mm

B - Double Cone Width

3.7500 in95.250 mm

C - Cup Width

1.3750 in34.925 mm

T - Bearing Width across Cups

3.7499 in95.247 mm

Abutment and Fillet Dimensions

R - Cone Frontface "To Clear" Radius10.030 in0.80 mm
r - Cup Backface "To Clear" Radius20.130 in3.30 mm

Db - Cup Backface Backing Diameter

5.87 in149.10 mm

Ab - Cage-Cone Frontface Clearance

0.12 in3 mm

Basic Load Ratings

C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)314600 lbf64800 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)497800 lbf435000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)525400 lbf113000 N
Ca90 - Dynamic Thrust Rating (90 million revolutions)611700 lbf52200 N

Factors

K - Factor71.24
e - ISO Factor81.04
Y1 - ISO Factor90.65
Y2 - ISO Factor100.96
Cg - Geometry Factor110.106
  • 1 These maximum fillet radii will be cleared by the bearing corners.
  • 2 These maximum fillet radii will be cleared by the bearing corners.
  • 3 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 4 Based on 1 x 106 revolutions L10 life, for the ISO life calculation method.
  • 5 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 6 Based on 90 x 106 revolutions L10 life, for The Timken Company life calculation method. C90 and Ca90 are radial and thrust values for a single-row, C90(2) is the two-row radial value.
  • 7 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 9 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 10 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use.
  • 11 Geometry constant for Lubrication Life Adjustment Factor a3l.


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