307TR

307tr

 

DOUBLE REDUCTION,10:1 thru 40:1 ratios

(SINGLE REDUCTION, 5:1 ratio, dimensions in parentheses)
Right click on link to download CAD drawing:  307TRCAD.dxf 

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:

bushing

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.
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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 29.44 29.44 32.41
DOUBLE REDUCTION 6:00 30.26 33.23 31.00 33.97 33.97 34.97 32.73 35.71 33.73 34.72 34.72 37.70
3:00 19.08 22.01 19.81 22.75 22.75 23.73 21.52 24.47 22.50
23.49 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 Engineering Information section for backstop torque capacity.
Kit no. BS307TR -     20:1 thru 40:1 ratios
Kit no. BS307TR-1 - 10:1 thru 15:1 ratio
Kit no. BS307TR-5 -   5:1 ratio