Electric Motor Size Gearbox Size Chart

The critical items on c face motors are the bolt circle aj dimension rabbet diameter ak dimension and the shaft size u dimension.

Electric motor size gearbox size chart. 70 85 7 9 20 iec56. In this case that indicates a size 726 gearbox. In that time there have been a great. 60 75 6 m5 11 23 iec63.

According to one manufacturer s product number system size 726 defines a gearbox that has a 2 62 center distance. For the machine is 58 rpm and you were using a 1 750 rpm motor you would calculate gear ratio as follows. For instance suppose that an application needs a 2 hp motor with a 15 1 ratio. The following specifications documents and dimension charts are available as acrobat pdf files.

Gearmotor sizing guide. 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. 80 100 7 m6 19 40 iec80. Electric motors generators and drives the following are dimensional size charts for standard electric motor nema standard frames and configuration.

D the d flange face mounted motor. Large hp motors generate heat that can adversely affect the reducer s mechanical ratings. To use the chart find the point where 2 hp and 15 1 ratio intersect. You can now size the gearhead to a motor by figuring 66 oz in.

Generally a higher wattage generator lets you power more items at once. 95 115 9 11 23 iec71. 110 130 9 14 30 iec80. C flange motors always have threaded mounting holes in the face of the motor.

John mazurkiewicz is a product manager with baldor. 80 100 7 9 20 iec63. Motor size spigot diameter a mounting hole pcd hc 2 mounting hole diameter d motor shaft diameter d motor shaft length l iec56. 1 5 safety factor 100 oz in.

Motor hp and frame size the gearbox size and input option must be determined before calculating the service factor. The size of the generator you need depends on your power requirements. The mystery of motor frame size introduction industrial electric motors have been available for nearly a century. On page 14 you will find a baldor frame size chart that is a great reference on t frame u frame and.

70 85 7 m6 14 30 iec71. Once the gearbox is sized use the required hp to compute the actual service factor. This motor has a special type of mounting flange installed on the shaft end. This reduced rating based on the increased heat is.