TR BACKSTOP TORQUE CAPACITIES
TR Backstop Torque Capacities (x103 In-Lbs.) About Low Speed Shaft

MODEL

 

NOMINAL GEAR DRIVE RATIO

 

5

 

10

 

15

 

20

 

25

 

30

 

35

 

40

 

60-250

 

107TR

 

2.77

 

4.70

 

7.09

 

9.56

 

11.74

 

14.15

 

16.14

 

18.66

 

----

 

115TR

 

7.82

 

14.12

 

20.29

 

9.49

 

11.72

 

14.02

 

15.99

 

18.17

 

----

 

203TR

 

7.74

 

13.05

 

19.50

 

27.28

 

11.78 (1)

 

13.86

 

16.62

 

18.70

 

----

 

207TR

 

13.68

 

25.01

 

36.98

 

45.79

 

32.89

 

40.03

 

46.85

 

51.64

 

----

 

215TR

 

13.72 (1)

 

23.93 (1)

 

33.65

 

47.47

 

59.71

 

40.99

 

47.49

 

51.44

 

----

 

307TR

 

25.22

 

42.79 (1)

 

61.10

 

44.85 (1)

 

57.89

 

72.37

 

81.42

 

91.58

 

----

 

315TR

 

32.78 (1)

 

58.40 (1)

 

83.93

 

77.41

 

95.79

 

68.56

 

80.27

 

90.76

 

----

 

407TR

 

50.96 (1)

 

73.48 (1)

 

113.92

 

156.45

 

139.81

 

170.26

 

137.11

 

154.22

 

----

 

415TR

 

----

 

----

 

106.93 (1)

 

154.61 (1)

 

182.45

 

----

 

----

 

219.54

 

231.00

 

507TR

 

----

 

----

 

224.34 (1)

 

----

 

380.35

 

246.21 (1)

 

273.57 (1)

 

300.10

 

231.00 (1)

 

608TR

 

----

 

----

 

311.10 (1)

 

----

 

534.12

 

437.54

 

----

 

507.30

 

459.40

 

700TR

 

----

 

----

 

311.10 (1)

 

----

 

534.12 (1)

 

437.54 (1)

 

----

 

507.30 (1)

 

459.40 (1)

 

Notes:

(1) For these specific models and ratios, the backstop torque capacity is less than the gear drive maximum catalog rating for Class I Service. Torque capacities shown are based upon 106 full load cycles. If less than 106 full load cycles are required, the backstop torque capacity can be increased. Consult the Dorris Company for evaluation.