Zero-Max – Shaft Couplings, Keyless Bushings, Adjustable Speed Drives
ISC Companies and Adams-ISC can supply the Zero-Max products on this page and many others found on the Zero-Max website. For more information or for a product quote, please contact us by phone 763-559-0033, by email [email protected], or by filling out our online contact form.
Zero-Max is a leading provider of motion control solutions and one of the industry’s most trusted coupling manufacturers. Products include composite disc couplings, servo couplings, offset couplings, torque limiters, right angle gear drives, linear actuators, and mechanical variable speed drives. Zero-Max products are known throughout the world for their innovative designs, high quality, high performance, and durability.
Zero-Max Trademarks/Names: ServoClass, Roh’lix, Control-Flex, OHLA, Posi-Lok, Crown, Phas-Lok, ETP (ETP-CLASSIC, ETP-EXPRESS, ETP-TECHNO, ETP-POWER, ETP-HYLOC, ETP-HYDROPRESS)
Flexible Shaft Couplings
Composite Disc shaft couplings deliver high performance with zero backlash and are designed to withstand the punishment and stress of demanding servomotor applications. These high speed flexible shaft couplings are ideal for cyclic applications where speed and repeatable accuracy are critical. Other brands may have high torsional stiffness; but are too brittle to withstand the punishment of high speed, reversing applications.
The working parts of these disc couplings are made of high precision composite material. This unique design has high torsional stiffness, yet allows for misalignment in high stress applications. They have excellent chemical and moisture resistance and can operate without maintenance in hostile environments.
Single-Flex Configuration Composite Couplings
Single Clamp Aluminum A1C Hubs
Single Clamp Steel Hubs
Single Set Screw Steel Hubs
Single Clamp Aluminum Hubs
Single QD Bushing Hubs
Single Clamp Stainless Steel Hubs
Single Set Screw Stainless Steel Hubs
Double-Flex Configuration Composite Couplings
Double Clamp Aluminum A1C Hubs
Double QD Bushing Hubs
Double Clamp Aluminum Hubs
Double Set Screw Steel Hubs
Double Clamp Steel Hubs
Floating Shaft Configuration Composite Couplings
Floating shaft couplings, or spacer couplings, are three-part assemblies consisting of a floating tubular shaft with an integrated flexible coupling attached to both ends. Floating shaft couplings are designed to transmit torque and accommodate misalignment in applications where drive and load components are spaced far apart.
Clamp Type Hubs
Setscrew Type Hubs
ServoClass Flexible Couplings
ServoClass couplings provide the optimal blend of performance, durability, and price. They are manufactured from high quality materials using state-of-the-art CNC manufacturing equipment. ServoClass shaft couplings are ideal for servomotor actuators.
ServoClass Single Flex
ServoClass Double Flex
Control-Flex Flexible Shaft Couplings
Control Flex shaft couplings are specially designed for use with feedback devices such as encoders. They are engineered for zero backlash operation to ensure encoder accuracy. Additional features include clamp hubs for vibration-resistant shaft engagement and flex elements which provide low bearing reaction loads.
Bolted Style Control Flex Couplings
Clamp Style Control Flex Couplings
Schmidt Flexible Couplings
Schmidt shaft couplings are uniquely designed to handle applications with challenging or extreme misalignments, including models for offset and inline shaft applications.
Schmidt 5-D Couplings
Schmidt Offset Shaft Couplings
Schmidt Flexible Couplings
Schmidt Inline Couplings
Wind Turbine Products
Zero-Max has developed an advanced, all-in-one disc coupling solution for wind turbine drivetrains with capacities up to 5MW.
Zero-Max’s torque limiters protect wind turbines against peak loads, reverse torques, and grid shorts. Shaft-mounted to the generator shaft, our wind turbine torque limiters are factory-set to slip at specific torque settings, ranging from 4,000 to 50,000Nm.
Wind Turbine Composite Disc Couplings
Wind Turbine Torque Limiters
Overhung Load Adapters
Overhung load adapters are hydraulic system components that protect shaft seals and prevent breakdown by absorbing internal and external stress from the motor and pump. They also provide a seal to protect motor components and prevent contamination of hydraulic fluid. SAE overhung load adapters prevent costly damage to shaft seals and are used for fan drives, recycling equipment, mixer units, industrial conveyor drives, and various other hydraulic motor applications.
SAE C Mount
SAE F Mount
SAE A Mount
SAE D Mount
Double Male OHLA
SAE B Mount
SAE E Mount
Roh’Lix Linear Actuators
Roh’Lix linear actuators are threadless, mechanical, screw-type devices designed to convert rotary motion into precise linear motion and thrust using rolling element ball bearings. These adjustable automatic overload protectors will slip when overloaded, providing linear clutching without any additional clutch mechanisms.
The Roh’Lix is intended for horizontal or vertical axial loading applications. Sideloads and twisting loads should be avoided whenever possible, as they cause uneven bearing loading and can shorten lifetime.
Phase Adjusting Hubs
The Phas-Lok Adjusting Hub is an economical, yet precision device that provides an easy way to change the phase relationship of a drive component and shaft. It is ideal for fine-tuning timing adjustments, adjusting for chain elongation, and sprocket tooth wear.
Phas-Lok for Browning Bushings
Phas-Lok for QD Bushings
Phase Adjusting Hubs
Adjustable Speed Drives
Adjustable speed drive speed adjustments are easily made by moving a lever control through an arc or turning the hand-wheel of a screw type control. In either case, easy and precise speed control settings are possible with Zero-Max adjustable speed drives – also referred to as variable speed drives.
Crown Gear Right Angle Gearbox
Crown Gear is a brand of right-angle gear drive boxes designed for dependable, economical transfer of speed or power. These high-performance gears are mounted to input and output shafts positioned at 90-degree angles, allowing the gearbox to intersect with a plane or cross on two parallel planes. Both series are available in 1:1 and 2:1 speed ratio with two-way (one output shaft) or three-way (two output shafts) versions.
Crown Gear gearboxes are available in two versions;
- Standard, black anodized aluminum housing, stainless steel shafts
- IP65-Rated, nickel-plated aluminum housing, stainless steel shafts, shaft seals, food-grade grease
IP65-Rated Counter Rotating Gearbox
Three-Way Right Angle Gearbox
IP65-Rated Three Way Gearbox
Two-Way Right Angle Gearbox
IP65-Rated Two Way Gearbox
Overload Safety Devices
Torq-Tender overload safety devices incorporate torque limiters for dependable overload protection. When a jam-up or excessive loading occurs, the built-in torque limiter will reliably and quickly release to prevent system damage. Torque value is controlled by the part number that is ordered; that value determines what spring is used during assembly of the torque limiter.
End of Shaft Mount – Type J
H-TLC Torque Limiters
End of Shaft Mount – Type JF
Shaft-to-Shaft Mount – Type C
End of Shaft Mount – Type S
Through Shaft Mount – Type B
Keyless Shaft Bushings
Keyless shaft bushings provide solid connections between the shaft and hub, without stress or wear to mounted components. Using hydraulic pressure to maintain their position, they eliminate keyways, tapers, and tapped holes, which can cause component stress and wear due to fretting, corrosion, and backlash.
Keyless shaft bushings enable fast, precision mounting of shaft components, providing solutions in the following situations:
- Where frequent readjustment is required, either rotationally or axially, such as during machine changeover
- In systems where balance and runout are inherent problems
- When repeated fastening, adjusting, and holding of shaft components is required
- Where downtime is critical and costly
- Where precise mounting location is critical
ETP Keyless Bushings
ETP keyless locking devices are designed to solve specific application requirements, such as phasing and timing to synchronize machine components. They feature double-walled sleeves and tightening mechanisms that form solid, continuous connections between shafts and hubs when tightened.
ETP-EXPRESS Stainless Steel
ETP-CLASSIC Stainless Steel
Posi-Lok Keyless Bushings
Posi-Lok (PSL) keyless shaft bushings are locking devices that provide a secure shaft-to-hub connection. Most models feature socket-head cap screws for easy tightening and distribution of pressure over the full length of the connection to reduce fretting, corrosion, and backlash. They are ideal for positioning and locking shaft components, and eliminate the need for keyways, tapers, and tapped holes, which can weaken or cause excess wear to shaft couplings.
Posi-Lok keyless shaft bushings utilize tapers that form a mechanical locking wedge as the actuation screws are tightened, pressing the inner sleeve against the shaft and outer sleeve against the hub. The resulting connection transmits high levels of torque and resists axial forces.
PSL-D-C Nickel Plated Posi-Lok
PSL-K-C Nickel Plated Posi-Lok
PSL-G-C Nickel Plated Posi-Lok
PSL-K-F Stainless Steel Posi-Lok
PSL-K-B Hex Head Posi-Lok