Electric Motor Size Gearbox Size Chart

Generally a higher wattage generator lets you power more items at once.

Electric motor size gearbox size chart.

This reduced rating based on the increased heat is. 60 75 6 m5 11 23 iec63. Calling motors with 2 digit frame sizes fractionals is somewhat. D the d flange face mounted motor.

Once the gearbox is sized use the required hp to compute the actual service factor. Standardized motor dimensions are established by the national electrical manufacturers association nema are tabulated below and apply to all base mounted motors listed herein that carry a nema. C flange motors always have threaded mounting holes in the face of the motor. 80 100 7 m6 19 40 iec80.

This generator sizing sheet will help you to determine your running and starting watts so you can choose the correct generator for your needs. For the machine is 58 rpm and you were using a 1 750 rpm motor you would calculate gear ratio as follows. Gearmotor sizing guide. In this case that indicates a size 726 gearbox.

Motor hp and frame size the gearbox size and input option must be determined before calculating the service factor. To use the chart find the point where 2 hp and 15 1 ratio intersect. 70 85 7 9 20 iec56. 110 130 9 14 30 iec80.

1 5 safety factor 100 oz in. 80 100 7 9 20 iec63. Recall that with a gearhead torque rises and output shaft speed drops with the gear ratio. Large hp motors generate heat that can adversely affect the reducer s mechanical ratings.

95 115 9 11 23 iec71. The following specifications documents and dimension charts are available as acrobat pdf files. Motor size spigot diameter a mounting hole pcd hc 2 mounting hole diameter d motor shaft diameter d motor shaft length l iec56. John mazurkiewicz is a product manager with baldor.

This motor has a special type of mounting flange installed on the shaft end. On page 14 you will find a baldor frame size chart that is a great reference on t frame u frame and. The size of the generator you need depends on your power requirements. Electric motors generators and drives the following are dimensional size charts for standard electric motor nema standard frames and configuration.

For instance suppose that an application needs a 2 hp motor with a 15 1 ratio. The mystery of motor frame size introduction industrial electric motors have been available for nearly a century. The critical items on c face motors are the bolt circle aj dimension rabbet diameter ak dimension and the shaft size u dimension. 70 85 7 m6 14 30 iec71.