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203TR Series

203TR Series Shaft Mounted Gear Drive

Double Reduction - 10:1 through 40:1 ratios Single Reduction - 5:1

MODEL

 

203TR05

 

203TR10

 

203TR15

 

203TR20

 

203TR25

 

203TR30

 

203TR35

 

203TR40

 

ACTUAL RATIOS

 

5.867

 

9.89

 

14.775

 

20.673

 

25.178

 

29.613

 

35.526

 

39.949

 

SHIPPING WEIGHT (LBS.)

 

134

 

140

 

140

 

140

 

140

 

140

 

140

 

140

 

QUICK RELEASE TAPERED BUSHINGS:

 

The bushing kit contains a bushing, nut, key(s) and mounting screws.
The recommended driven shaft length is 7.88 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

 

203T203

 

5

1

 

2 3/16

 

1/2 x 1/4

 

6 5/8

 

5 7/8

 

203T200

 

6

2

 

2

 

1/2 x 1/4

 

5 7/8

 

5 7/8

 

203T115

 

7

2

 

1 15/16

 

1/2 x 1/4

 

5 7/8

 

5 7/8

 

203T114

 

7

2

 

1 7/8

 

1/2 x 1/4

 

5 7/8

 

5 7/8

 

203T112

 

8

2

 

1 3/4

 

3/8 x 3/16

 

5 7/8

 

5 7/8

 

203T111

 

8

2

 

1 11/16

 

3/8 x 3/16

 

5 7/8

 

5 7/8

 

203T110

 

8

2

 

1 5/8

 

3/8 x 3/16

 

5 7/8

 

5 7/8

 

203T108

 

9

2

 

1 1/2

 

3/8 x 3/16

 

5 7/8

 

5 7/8

 

203T107

 

9

2

 

1 7/16

 

3/8 x 3/16

 

5 7/8

 

5 7/8

 

203T106

 

9

2

 

1 3/8

 

5/16 x 5/32

 

6 1/2

 

6 1/4

 

203T105

 

10

2

 

1 5/16

 

5/16 x 5/32

 

6 1/2

 

6 1/4

 

203T104

 

10

2

 

1 1/4

 

1/4 x 1/8

 

7 3/4

 

7 3/4

 

203T103

 

11

2

 

1 3/16

 

1/4 x 1/8

 

7 3/4

 

7 3/4

 

 

NOTES, OPTIONS & ACCESSORIES

MOTOR MOUNTS (2MM - 90 LBS.)

Motor brackets are shown in the intermediate position. The brackets can be raised or lowered 6 1/4 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

 

143T/145T

 

182T/184T

 

213T/215T

 

254T/256T

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

MIN.

 

MAX.

 

SINGLE REDUCTION

 

6:00

 

26.55

 

29.54

 

27.55

 

30.54

 

28.30

 

31.29

 

29.30

 

32.29

 

3:00

 

21.85

 

24.82

 

22.84

 

25.81

 

23.58

 

26.56

 

24.57

 

27.55

 

DOUBLE REDUCTION

 

6:00

 

26.67

 

29.66

 

27.67

 

30.65

 

28.41

 

31.40

 

29.41

 

32.39

 

3:00

 

17.62

 

20.58

 

18.60

 

21.57

 

19.34

 

22.31

 

20.33

 

23.30

 

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. BS203TR- 25:1 thru 40:1 ratios
Kit no.BS203TR-1 - 10:1 thru 20:1 ratio
Kit no.BS203TR-5 - 5:1 ratio


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