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307TR Series

307TR Series Shaft Mounted Gear Drive
Double Reduction - 10:1 through 40:1 Ratios Single Reduction - 5:1 Ratio

MODEL

 

307TR05

 

307TR10

 

307TR15

 

307TR20

 

307TR25

 

307TR30

 

307TR35

 

307TR40

 

ACTUAL RATIOS

 

6.467

 

10.974

 

15.669

 

19.169

 

24.742

 

30.928

 

34.797

 

39.140

 

SHIPPING WEIGHT (LBS.)

 

310

 

335

 

335

 

335

 

335

 

335

 

335

 

335

 

QUICK RELEASE TAPERED BUSHINGS:

 

The bushing kit contains a bushing, nut, key(s) and mounting screws.
The recommended driven shaft length is 11.00 inches and uses the recommended keyway length.
When an application requires the minimum driven shaft length, the keyway must be keyed along the entire length.
Consult factory for bore sizes not shown.

 

BUSHING KIT NO. *

 

WEIGHT
(LBS.)

 

TYPE

 

DRIVEN SHAFT DIMENSIONS (INCHES)

 

DIA.

 

KEYWAY
WIDTH X DEPTH

 

RECOMMENDED KEYWAY LENGTH

 

MINIMUM DRIVEN SHAFT LENGTH

 

307T307

 

12

1

 

3 7/16

 

7/8 x 7/16

 

8 5/8

 

8 3/8

 

307T303

 

15

1

 

3 3/16

 

3/4 x 3/8

 

8 5/8

 

8 3/8

 

307T300

 

17

1

 

3

 

3/4 x 3/8

 

8 5/8

 

8 3/8

 

307T215

 

19

2

 

2 15/16

 

3/4 x 3/8

 

8 3/8

 

8 3/8

 

307T214

 

19

2

 

2 7/8

 

3/4 x 3/8

 

8 3/8

 

8 3/8

 

307T211

 

21

2

 

2 11/16

 

5/8 x 5/16

 

10 7/8

 

10 7/8

 

307T208

 

24

2

 

2 1/2

 

5/8 x 5/16

 

10 7/8

 

10 7/8

 

307T207

 

25

2

 

2 7/16

 

5/8 x 5/16

 

10 7/8

 

10 7/8

 

NOTES, OPTIONS & ACCESSORIES

MOTOR MOUNTS (3MM -- 117 lbs.)

Motor brackets are shown in the intermediate position. The brackets can be raised or lowered 5.50 inches to the high or low position by moving to the next set of mounting holes.

The motor brackets can be mounted on either the long (6 o'clock) or short (3 o'clock) sides of the housing.

V-BELT CENTER DISTANCES FOR INTERMEDIATE MOUNTING POSITION (INCHES)

MOTOR MOUNT
ORIENTATION

 

MOTOR FRAME SIZE

 

182T/184T

 

213T/215T

 

254T/256T

 

284T/286T

 

324T/326T

 

364T/365T

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

SINGLE REDUCTION

 

6:00

 

30.00

 

33.00

 

30.75

 

33.75

 

31.75

 

34.75

 

32.50

 

35.49

 

33.50

 

36.49

 

34.50

 

37.49

 

3:00

 

25.00

 

27.96

 

25.74

 

28.70

 

26.72

 

29.69

 

27.47

 

30.43

 

28.46

 

31.42

 

29.44

 

32.41

 

DOUBLE REDUCTION

 

6:00

 

30.26

 

33.23

 

31.00

 

33.97

 

31.99

 

34.97

 

32.73

 

35.71

 

33.73

 

36.70

 

34.72

 

37.70

 

3:00

 

19.08

 

22.01

 

19.81

 

22.75

 

20.79

 

23.73

 

21.52

 

24.47

 

22.50

 

25.45

 

23.49

 

26.44

 

FACE MOUNTING
Face mounting holes are not drilled on standard units -- Contact factory if face mounting is desired.

TORQUE ARM

The preferred position for the torque arm is 90° to a line between the point of attachment of the torque arm to the drive and the low speed shaft. The torque arm must be in tension. Keep the torque plate in the position shown.

EXTERNAL BACKSTOP KIT

Backstop extensions are standard on double reduction drives and can be supplied on single reduction drives if specified when order is placed. See Backstop Kit section for backstop torque capacity.
Kit no. BS307TR- 30:1 thru 40:1 ratios
Kit no.BS307TR-1 - 10:1 thru 25:1 ratio
Kit no.BS307TR-5 - 5:1 ratio


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