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 1.36 Nm to 22.6 Nm 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 ZeroMax Drives are available with right angle gearheads. Some Zero‑Max Drives may be purchased with standard electric zero-max.de motors or they may be connected to any rotating power source up to 2000 RPM....

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 levers....

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 E Lever Torque Running, no load) (Not running, full load) (Nm) Optional Screw Type...

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. Microdial Control*...

How to Select a Zero-Max® Drive 1. S tart By Determining The Torque Required To Start And Run Your Machine. This may be the 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. D etermine Speed Range Required For Your Machine Processes. The Zero-Max Drive speed 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 and...

Zero-Max® Drives Note: Shaft rotations are always referenced by viewing the end of that shaft Preferred Output Input Rotation Rotation Output Input Type of Duty 8-10 hrs./day Moderate Shock Heavy Shock Reversing Service Running Torque Multiplier General machines with ball or roller bearings General machines with sleeve bearings 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. Service Factors Input Output Input Output

Torque and Speed Range Selection Chart Standard Zero-Max Drives -- Order By Complete Model Number. Model Number – without Motor Speed Torque Output Shaft Rotation Shaft Range w/ Rating 1800 RPM Arrangement (Nm) CCW CW Reverse input 0-400 1.4 Model Number – with Motor or Netto Netto C-Flange Adapter Output Shaft Rotation Shaft Weight Weight Arrangement (kg) (kg) CCW CW Reverse

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

Drives Dimensions Reverse Drives Models E3 and JK3 Dimensions P REVERSE LEVER Motorized Drives Models E and JK Dimensions P XB * Motor slots are centered 108 mm apart. * M42L (long) has replaced M42 motor.

Drives Dimensions Drives with C-Flange Adapters Models Y, QX and ZX Dimensions Model QX * Accepts 56, 143T and 145T frame, C-face motor.

Drives Dimensions Standard Drives with Right Angle Gearhead Dimensions E and JK Drives with Right Angle Gearheads (W) Dimensions with Motor Right Angle Gearheads (W) E1 & E2 * Motor slots are centered 108 mm apart Shaft and Keyway Details Hollow Shaft Specifications are subject to change. When dimensions are critical, detailed drawings should be obtained from Zero-Max. Right Angle Gearheads (W) Motor* * See page 12 for motor data. ** M42L (long) h

Ordering Model Code Configuration Output Rotation Shaft Configuration Output Torque Counter Input Clockwise Counter Clockwise Control Options Code Output Torque Output Input Gear Ratio Integrated Electric Motor (Available for E and JK drives only) Code kW Voltage Phase Enclosure Standard Control Lever Screw Control Drip Proof Microdial (Left Hand Installation) Drip Proof Microdial (Right Hand Installation) Drip Proof Totally Enclosed Fan Cooled (TEFC) Totally Enclosed Fan Cooled (TEFC) • Note: Microdial controls not available on QX and ZX models as standard. Right Angle Gear Reducer (Available...

PRECISE. RELIABLE. ROBUST. AVAILABLE. CD® Couplings (Composite Disc) Adjustable Speed Drives • Backlash-free torque transmission • High torsional stiffness • Nominal torque range from 20 Nm to 5333 Nm • Bore diameter from ø6 mm to ø152 mm • Speeds up to 15000 rpm • High misalignment capacity • RoHS compliant • Five models in torque range from 1.4 Nm to 23 Nm • Speed infinitely adjustable • Input speed up to max. 2000 rpm • 4 : 1 speed reduction • Constant torque throughout the speed range • Shaft arrangement freely selectable Servoflex Couplings VRT™ Variable Ratio Transmission • Aluminum or...