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Torque Hub® Shaft Output

Performance Data Physical Data

Model

Max. Cont. 
Torque (lb-in)

Max. Intrmt. 
Torque
(lb-in)

Max. Input Speed (RPM)

Radial Load (lb)

Ratio

Overall Length (in.)

Pilot Mtg Diam. (in.)

B.C. Diam. (in.)

No. of Studs

Shaft Diam. (in.)

Unit Wt. (lb)

SO7A2

7,500

15,000

4,000

2,500

4:1

9.86

6.5

7.5

4

1.8

45

S1A

15,000

30,000

4,000

7,000

19:1 
to
69:1

11.90

8.6

9.5

9

2.0

84

S1C5

15,000

30,000

5,000

7,000

4:1 
to
6:1

10.10

5.4

7.3

8

2.0

55

S1CD

15,000

30,000

5,000

5,500

3:1 
to
6:1

10.10

6.0

9.0

4

1.7

78

S1CK/CL

15,000

30,000

5,000

8,000

4:1 
to
6:1

11.80

5.0

6.4

4

2.3

65

S3A6

37,500

75,000

4,000

15,000

19:1 
to
74:1

13.68

8.3

10.1

12

3.0

195

S6A1/A2

60,000

120,000

5,000

15,500

13:1 
to
42:1

15.84

11.0

13.2

10

3.0

242

S6C7

60,000

120,000

2,500

15,500

4:1 
to
6:1

14.57

11.0

13.2

10

3.0

190

S7AB

75,000

150,000

3,000

20,000

27:1 
to
95:1

18.10

15.0

16.8

12

3.5

430

S7A1/A2

75,000

150,000

3,000

20,000

27:1 
to
95:1

18.10

12.5

13.6

20

3.5

430

S10A

125,000

250,000

1,800

30,000

44:1 
to 124:1

21.30

18.3

19.8

12

4.3

700

S12A

125,000

250,000

4,000

15,000

20:1 
to
40:1

19.80

12.5

13.6

20

3.5

503

S16A4/A6

160,000

320,000

4,000

15,000

20:1 
to
39:1

22.59

12.5

13.6

20

3.5

565

S20A1

250,000

500,000

1,800

42,000

27:1 to 116:1

25.20

19.0

21.9

20

5.1

1350

S25A1

200,000

400,000

3,000

30,000

19:1 
to
36:1

23.40

18.3

19.8

12

4.3

500

S40A

400,000

800,000

3,000

42,000

25:1
to
40:1

26.7

21.4

22.38

30

5.1

1400

S50A

500,000

1,000,000

3,000

42,000

25:1 
to
94:1

27.80

19.0

21.9

20

5.1

1500

*Dimensions and specifications are only representative of the units and will vary by specific model number selected
*Contact Fairfield for specific model information