Adjustable Speed Drives
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Adjustable Speed Drives

How The Zero-Max® Drive Works A Zero-Max Drive is a mechanical adjustable speed drive. Five sizes provide constant torque of 12 to 200 inch pounds throughout the speed range. The speed range is infinitely variable from 0 to 1/4 of the input speed under full rated load. This is generally stated as 0-400 RPM assuming an input of 1800 RPM. For lower speed/higher torque applications, some Zero-Max Drives are available with right angle gearheads. Some Zero-Max Drives may be purchased with standard electric motors or they may be connected to any rotating power source up to 2000 RPM. Speed...

Match the Zero-Max® Drive to These Components To achieve the exact performance characteristics you desire, Zero-Max provides the following matching components: For Model E and JK Drives, a right angle gearhead and selection of motors are available. For models Y, QX and ZX Drives, C-Flange adapters are available for connecting customer supplied motors to the drive you have selected. Lever control is standard on all drives. Optional controls include: screw control, extended screw control, extended lever control, extended control shaft, microdial control, plus flatted and drilled control...

Controls for Zero-Max® Drives Standard Lever Type Control The lever control can be removed from its customary 12 o’clock position and moved to a 6 or 9 o’clock position on E and JK Models and to any position on Y, QX and ZX Models that will not interfere with the casebody or shaft. Flatted and drilled, as well as extended levers, are available for easy attachment to any kind of remote control, or for use on tension control applications. Standard Lever 9 O'CLOCK A D 6 O'CLOCK Lever Control Dimensions Drive Model Lever Torque (Not running, full load) Optional Screw Type Control All Zero-Max...

Controls for Zero-Max® Drives Optional Microdial Type Control Drive models E, JK, and Y are available with Microdial control. The Microdial is an enhanced Screw control that will provide the user with a numerical value that will correspond to a given speed setting. For added flexibility, these units can be ordered with the Microdial counter on either end of the control. The Microdial is ideal for applications that require the speed setting to be adjusted often and need a high level of repeatability. Kits are available for adding the Microdial control to drives in the field. Numerical...

How to Select a Zero-Max® Drive 1. tart By Determining The Torque Required To Start And Run Your Machine. This may be the S most important step in selecting the best drive model for your application. All Zero-Max Drives are rated for constant torque and variable horsepower throughout the speed range. Be sure to consider the type of machine and apply the proper service factor. 2. etermine Speed Range Required For Your Machine Processes. The Zero-Max Drive speed D range of 0-400 RPM is given assuming an input speed of 1800 RPM and full load on the output shaft. The selection of input speed...

Zero-Max® Drives Note: Shaft rotations are always referenced by viewing the end of that shaft Output Rotation Preferred Input Rotation Service Factors Type of Load Moderate Shock Heavy Shock Reversing Service Input Output Input Output Conveyors and machines with excessive sliding friction Machines that have “high” load spots in their cycle like printing, punch presses and machines with cams /crank-operation. Output Input General machines with sleeve bearings Running Torque Multiplier General machines with ball or roller bearings

Torque and Speed Range Selection Chart Standard Zero-Max Drives -- Order By Complete Model Number. Torque Rating (In. Lbs.) Speed Range w/ 1800 RPM input Model Number - without Motor Output Shaft Rotation Net Shaft Shaft Wt. Arrangement Arrangement Lbs. CCW CW Reverse Model Number - with Motor or C-Flange Adapter Output Shaft Rotation CCW Standard Shaft Arrangements Input

Zero-Max® Drives Standard Drives Models E, JK, Y, QX and ZX Dimensions FU I

Drives Dimensions Reverse Drives Models E3, JK3 and Y3 Dimensions P REVERSE LEVER Motorized Drives Models E and JK Dimensions P XB *Motor slots are centered 4.25 apart. C DIMENSION Z.M. Motor Horse Power Used With M45 TEFC 1/4 230/460 60 3 **M42L (long) has replaced M42 motor. Contact factory with questions. Other motors are available, please contact the factory with your requirements.

Drives Dimensions Drives with C-Flange Adapters Models Y, QX and ZX Dimensions Model QX *Accepts 56, 143T and 145T frame, C-face motor. Note: CFY adapter not compatible with Y3 reversible drive

Drives Dimensions zero-max.com E and JK Drives with Right Angle Gearheads (W) Dimensions with Motor Standard Drives with Right Angle Gearhead Dimensions E1& E2 Right Angle Gearheads (W) A *Motor slots are centered 4.25 apart MOTORS* SHAFT AND KEYWAY DETAILS Model Hollow Shaft Specifications are subject to change. When dimensions are critical, detailed drawings should be obtained from the factory. Right Angle Gearheads (W) *See page 12 for motor data. **M42L (long) has replaced M42 motor. Contact factory with questio

Ordering Model Code Output Torque Output Rotation Counter Clockwise Counter Clockwise Right Angle Gear Reducer Control Options Shaft Configuration (Available for E and JK drives only) Output Torque Gear Ratio Standard Control Lever Screw Control Microdial (Left Hand Installation) Microdial (Right Hand Installation) Output Input *Reversing drives are available in sizes E, JK, and Y only. Note: Microdial controls not available on QX and ZX models as standard. Integrated Electric Motor (Available for E and JK drives only) • Required output torque is 20 in-lbs. • Output shaft rotation is...

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