TTHD Thrust Bearings

For applications with heavy thrust loads, Timken® TTHD Thrust Bearings are designed and manufactured to maximize bearing life and load-carrying capacity. This includes applications such as: • Oil rig swivels and top drives • Crane swivel blocks • Metal mill work and back-up rolls • Piercing mill thrust blocks • Pulp refiners and digesters • Plastic injection machines and screw-type extruders • Precision machine tool tables • Radar turntables • Coal pulverizers • Gearboxes for vertical rolling mills

The geometry of the TTHD tapered rollers provide increased capacity over cylindrical thrust and spherical thrust bearings with the same envelope dimensions. The extensions of the raceways and rollers converge at a common point (the apex) on the axis of rotation, resulting in true rolling motion. True rolling motion reduces heat generation and wear on the races and rollers. It also allows higher speeds with minimum roller skewing or skidding.

Enhanced features, such as coatings and finishes, also reduce film and skidding damage and handle high shock loads.

Standard Features Benefits

Latest Profiling Technology Allows for maximum load carrying capacity.

Enhanced Rib DesignProvides higher speed capability (May allow for rib speeds up to 2743 meters/minute or 9000 feet/minute.*)

True Rolling Motion Reduces heat generation and wear. Extends bearing life.

Premium MaterialProvides high shock load resistance. Maximizes service life in applications with heavy loading.

Customized Design Ensures best bearing for application.

Enhanced Features Benefits

Super Clean Steel Extends bearing fatigue life.

Coatings/Super Finish Reduces film and skidding damage for longer service life. Able to handle high shock loads.

For more information, visit www.timken.com or contact your Timken representative.

* Subject to approved load level and lubricant flow.

Bearings • Steel •Precision Components • Lubrication • Seals • Remanufacture and Repair • Industrial Services

www.timken.com

Timken® is the registered trademark ofThe Timken Company.

© 2007 The Timken CompanyPrinted In the U.S.A.3M 12-07-29 Order No. 10174

Popular Applications:• Oil field swivels and top drives

• Boring mill tables

• Plastic extruder drives

• Pulp refiners and digesters

• Metal mill work rolls

Note: Certain housing and shaft changes may be needed. Please consult your Timken representative.

TTHD Thrust Bearing InterchangeThe following Torrington® branded TTHD product is no longer available. The corresponding Timken interchange and catalog data has been provided for your reference.

Torrington Part Number

(Superseded by Timken Part

Number)

30TTHD013

30TTHD013 00278

40TTHD01540TTHD015 AA967

40TTHD015 AA968

45TTHD020

50TTHD025

50TTHD025 00278

60TTHD026

60TTHD026 00278

65TTHD029

66TTHD030

68TTHD031

70TTHD033

70TTHD032

70TTHD032 00278

80TTHD034

80TTHD034 00278

80TTHD034 AA795

90TTHD039

92TTHD039

90TTHD039 00278

92TTHD043

92TTHD043 00278

100TTHD045

110TTHD047110TTHD047 AA767

110TTHD047 00278

55TTHD043 00278

160TTHD064160TTHD064 BB767

160TTHD065

Timken Part

NumberBore

d

mmin.

Outside Diameter

D

mmin.

Width

T

mmin.

Max Shaft and

Housing Fillet Radii

R

mmin.

Static Load

Rating

Coa

kNlbs.

Dynamic Load

Rating

Ca

kNlbs.

T311 76.2003.0000

161.9256.3750

33.3381.3125

3.300.13

1760395000

587132000

T311F 76.2003.0000

161.9256.3750

33.3381.3125

3.300.13

2440545000

1250281000

T411 101.6004.0000

215.9008.5000

46.0381.8125

3.300.13

3030682000

977219000

T411F 101.6004.0000

215.9008.5000

46.0381.8125

3.300.13

4200945000

2160485000

T451 114.3004.5000

250.8259.8750

53.9752.1250

4.000.16

4380985000

1360305000

T511 127.0005.0000

266.70010.5000

58.7382.3125

4.800.19

45801030000

1430322000

T511F 127.0005.0000

266.70010.5000

58.7382.3125

4.800.19

60301360000

1740390000

T611 152.4006.0000

317.50012.5000

69.8502.7500

6.400.25

66601500000

2030455000

T611F 152.4006.0000

317.50012.5000

69.8502.7500

6.400.25

92002070000

47501060000

T651 165.1006.5000

311.15012.2500

88.9003.5000

6.400.25

57301290000

1800405000

T661 168.2756.6250

304.80012.0000

69.8502.7500

6.400.25

53401200000

1710383000

T691 174.6256.8750

358.77514.1250

82.5503.2500

6.400.25

78701770000

2390537000

T709 177.8007.0000

431.80017.0000

101.6004.0000

3.300.13

136003060000

3980892000

T711 177.8007.0000

368.30014.5000

82.5503.2500

8.000.31

89502010000

2670602000

T711F 177.8007.0000

368.30014.5000

82.5503.2500

8.000.31

124002790000

63501430000

T811 203.2008.0000

419.10016.5000

92.0753.6250

9.700.38

114002560000

3350753000

T811F 203.2008.0000

419.10016.5000

92.0753.6250

9.700.38

157503540000

81001820000

T811V 203.2008.0000

419.10016.5000

92.0753.6250

9.700.38

114002560000

3350753000

T911 228.6009.0000

482.60019.0000

104.7754.1250

11.200.44

152003420000

4400988000

T911A 234.9509.2500

482.60019.0000

104.7754.1250

11.200.44

152003420000

4400988000

T911F 228.6009.0000

482.60019.0000

104.7754.1250

11.200.44

212004750000

108502440000

T921 234.9509.2500

546.10021.5000

127.0005.0000

16.000.63

213004780000

60601360000

T921F 234.9509.2500

546.10021.5000

127.0005.0000

16.000.63

300006750000

155503500000

T1011 254.00010.0000

539.75021.2500

117.4754.6250

11.200.44

194004350000

54801230000

T1120 279.40011.0000

603.25023.7500

136.5255.3750

11.200.44

253005690000

69901570000

T1120F 279.40011.0000

603.25023.7500

136.5255.3750

11.200.44

333007480000

84901907000

T9250F 234.9509.2500

546.10021.5000

127.0005.0000

16.000.63

312007050000

160503600000

T16021 406.40016.0000

711.20028.0000

146.0505.7500

9.700.38

290006530000

82201850000

T16050 406.40016.0000

838.20033.0000

177.8007.0000

12.700.50

4800010800000

128002880000