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JT Gearboxes Selection Guide


Example Model: (1)JT25  -  (2)1:1  -  (3)1000R -  (4)1000R  -  (5)1-LR  -  (6)B3

Bevel gearboxes are selected on the basis of SPEED, RATIO, POWER, and TORQUE. 
 
The ratings for bevel gearboxes in this catalogue are based on a service factor of 1.00. For other operating conditions, the application power or torque must be multiplied by the appropriate service factor, to determine the equivalent gear drive power rating. A gear drive should be selected with a rated capacity equal to or greater than the equivalent rating. Below table designates recommended service factors for various conditions of load, power source, and duration of service.

Note: please use these data inside the brackets when “frequent starts and stops” refers to more than 10 starts per hour.
Note: time specified for intermittent and occasional service refers to total operating time per day.
Uniform (Light Shocks) driven machine: generators, conveyor belts, apron conveyor, screw conveyors, ventilators, agitators and mixers for uniform densities, filling and packing stations, gear wheel pumps, feed servos of machine tools.
Medium Shocks driven machine: lifts, swing gear on cranes, pit ventilators, agitators and mixers for unequal densities, piston pumps, timber processing machines, paper processing machines, winches, auxiliary drives in ships, textile machines.
Heavy Shocks driven machine: punches, shears, rolling and smelting machines, heavy-duty centrifuges, heavy-duty supply pumps, edge runners, vibrating machines, cutting machines, brick works machines, heavy-duty lifts.

(1). Sizes
JT15, JT19, JT25, JT32, JT40, JT45, JT50, JT60, JT72, JT85.
Note: click your required model website directly, there are specifications tables (bottom position) and assembly drawings for your reference.
 
(2). Gear Ratios
JT15 with 1:1, 2:1 ratio.
JT19 with 1:1, 2:1 ratio.
JT25 with 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, 5:1 ratios
JT32 with 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, 5:1 ratios
JT40 with 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, 5:1 ratios
JT45 with 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, 5:1 ratios
JT50 with 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, 5:1 ratios
JT60 with 1:1, 2:1, 3:1, 4:1, 5:1 ratios
JT72 with 1:1, 2:1, 3:1, 4:1, 5:1 ratios
JT85 with 1:1, 2:1, 3:1, 4:1, 5:1 ratios

(3). and (4). Input Speed and Output Speed (RPM)

(5). Shaft Arrangements and Rotation Directions
Shaft rotation is determined by the relative location of the gears. Right hand (CW: clockwise) or left hand (CCW: counterclockwise) rotations are determined by viewing the end of the shaft. There are 42 type shaft arrangements and direction of shaft rotating for customers selection.
1-LR: 3 way, input shaft CW, double output shafts CW (view from right output shaft). 
1-LR-O: 3 way, input shaft CW, double output shafts CCW (view from right output shaft). 
1-L: 2 way, input shaft CW, output shaft CCW.
1-L-O: 2 way, input shaft CW, output shaft CW.
1-R: 2 way, input shaft CW, output shaft CW.
1-R-O: 2 way, input shaft CW, output shaft CCW.
1-UD: 3 way, input shaft CW, double output shafts CW (view from upper output shaft). 
1-UD-O: 3 way, input shaft CW, double output shafts CCW (view from upper output shaft).
1-U: 2 way, input shaft CW, output shaft CW.
1-U-O: 2 way, input shaft CW, output shaft CCW.
1-D: 2 way, input shaft CW, output shaft CCW.
1-D-O: 2 way, input shaft CW, output shaft CW. 
U-LR: 3 way, input shaft CW, double output shafts CW (view from left output shaft).
U-LR-O: 3 way, input shaft CW, double output shafts CCW (view from left output shaft).
U-L: 2 way, input shaft CW, output shaft CW.
U-L-O: 2 way, input shaft CW, output shaft CCW.
U-R: 2 way, input shaft CW, output shaft CCW.
U-R-O: 2 way, input shaft CW, output shaft CW. 
D-LR: 3 way, input shaft CW, double output shafts CW (view from right output shaft).
D-LR-O: 3 way, input shaft CW, double output shafts CCW (view from right output shaft).
D-L: 2 way, input shaft CW, output shaft CCW.
D-L-O: 2 way, input shaft CW, output shaft CW.
D-R: 2 way, input shaft CW, output shaft CW.
D-R-O: 2 way, input shaft CW, output shaft CCW.
1-1-LR: 4 way, input shaft CW, in-line output shaft CW, double output shafts CW (view from right output shaft).
1-1-LR-O: 4 way, input shaft CW, in-line output shaft CW, double output shafts CCW (view from right output shaft).
1-1-L: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
1-1-L-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.
1-1-R: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.
1-1-R-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
1-1-UD: 4 way, input shaft CW, in-line output shaft CW, double output shafts CW (view from upper output shaft).
1-1-UD-O: 4 way, input shaft CW, in-line output shaft CW, double output shafts CCW (view from upper output shaft).
1-1-U: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.
1-1-U-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
1-1-D: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
1-1-D-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.
U-D-LR: 4 way, input shaft CW, in-line output shaft CW, double output shafts CW (view from right output shaft).
U-D-LR-O: 4 way, input shaft CW, in-line output shaft CW, double output shafts CCW (view from right output shaft).
U-D-R: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.
U-D-R-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
U-D-L: 3 way, input shaft CW, in-line output shaft CW, double output shafts CCW.
U-D-L-O: 3 way, input shaft CW, in-line output shaft CW, double output shafts CW.


(6). Mounting Positions
Horizontal mount: B3
Over hung mount: B8
Wall mount codes: V5

Sample Part Number

JT-Series - 1:1 - 1500 - 1500 - I-LR - B3