Electric Motor Size Gearbox Size Chart

C flange motors always have threaded mounting holes in the face of the motor.

Electric motor size gearbox size chart.

For instance suppose that an application needs a 2 hp motor with a 15 1 ratio. 110 130 9 14 30 iec80. The mystery of motor frame size introduction industrial electric motors have been available for nearly a century. Motor size spigot diameter a mounting hole pcd hc 2 mounting hole diameter d motor shaft diameter d motor shaft length l iec56.

Large hp motors generate heat that can adversely affect the reducer s mechanical ratings. According to one manufacturer s product number system size 726 defines a gearbox that has a 2 62 center distance. This motor has a special type of mounting flange installed on the shaft end. The size of the generator you need depends on your power requirements.

Recall that with a gearhead torque rises and output shaft speed drops with the gear ratio. 1 5 safety factor 100 oz in. Gearmotor sizing guide. 70 85 7 m6 14 30 iec71.

80 100 7 9 20 iec63. D the d flange face mounted motor. Electric motors generators and drives the following are dimensional size charts for standard electric motor nema standard frames and configuration. This reduced rating based on the increased heat is.

80 100 7 m6 19 40 iec80. In that time there have been a great. This generator sizing sheet will help you to determine your running and starting watts so you can choose the correct generator for your needs. 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.

For the machine is 58 rpm and you were using a 1 750 rpm motor you would calculate gear ratio as follows. Once the gearbox is sized use the required hp to compute the actual service factor. 60 75 6 m5 11 23 iec63. John mazurkiewicz is a product manager with baldor.

The critical items on c face motors are the bolt circle aj dimension rabbet diameter ak dimension and the shaft size u dimension. Generally a higher wattage generator lets you power more items at once. 70 85 7 9 20 iec56. Calling motors with 2 digit frame sizes fractionals is somewhat.

On page 14 you will find a baldor frame size chart that is a great reference on t frame u frame and. 95 115 9 11 23 iec71. The following specifications documents and dimension charts are available as acrobat pdf files. To use the chart find the point where 2 hp and 15 1 ratio intersect.