Zero-Max Zero Maintenance Bearings

Plymouth, MN – Zero maintenance bearings are now available as an option for Schmidt Offset couplings from Zero-Max. This new coupling feature eliminates the need for periodic coupling lubrication and the resulting system downtime.

Schmidt Offset couplings provide the utmost in precision for parallel offset shafts. They transmit constant angular velocity and torque in a wide range of parallel shaft misalignments. With a time-proven design, they are used in a wide range of machine applications such as printing, embossing, paper converting, pharmaceutical, and automated assembly systems.

The new Schmidt sealed bearing coupling feature incorporates needle bearings with internal micro-poly lubrication. There are no lube fittings making for a cleaner coupling setup.

Compact in design, Schmidt Offset couplings with the new zero maintenance bearing option keep out contaminants and foreign matter, enabling the couplings to be used in less than ideal operating environments.

Schmidt Offset couplings are designed to handle high amounts of parallel offset up to 17 inches and are available with torque capacities up to 459,000 in-lbs. They impose no side loads on shafts or bearings and eliminate radial shaft vibrations.

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Zero-Max ETP Shaft Locking Bushings

Plymouth, MN – ETP Shaft locking bushings from Zero-Max produce accurate and concentric mounting compared to mechanical shaft locking bushings.

ETP bushings incorporate a double walled sleeve encapsulating a pressure medium. When the actuation screw is tightened it forces the inner and outer wall of the bushing to expand uniformly against the shaft and hub of the mounted component. The result is concentricity to .001” T.I.R. Mechanical devices, by comparison, rely on precise and accurate tightening of the actuation screws to avoid excessive T.I.R. Additionally, extremely high compressive forces are imparted on the shaft by mechanical bushings.

ETP bushings are ideal where repeated mounting and dismantling of components is required. ETP Bushings are consistently accurate and easy to use.

The ETP Classic has flange mounted actuation screws. The ETP Express has just one mounting screw positioned in a radial location. The single actuation screw of the ETP Express is the fastest and easiest way to mount components accurately. The single actuation screw saves space, time and is easy to access.

Both ETP Classic and ETP Express operate in temperature ranges from -22° to 180° F. The ETP Classic handles torque ranges from 40 to 11,413 ft lbs while the ETP Express handles torque ranges from 40 to 6,400 ft lbs. Both require no lubrication. They are available in a full range of inch and metric sizes in both standard steel and stainless steel.

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CD Couplings® from Zero-Max

Plymouth, MN — New CD Couplings® from Zero-Max are an ideal choice for use with fixed displacement hydraulic pumps driven by servo motors. CD Couplings provide the ideal combination of high dynamic load capacity and high torsional stiffness to ensure reliable system operation.

“This new pump drive technology has become increasingly popular because of dramatic improvements in their energy efficiency and noise reduction”, reports Robert Mainz, Zero-Max sales manager. “These pump systems utilize the power and precision that only a servo motor can provide. The system pressure is controlled by modulating the output volume of a fixed displacement pump. This is made possible utilizing a high performance control system and the high performance qualities of a CD shaft coupling.”

CD couplings have unique design qualities that are robust to ensure that these hydraulic pump applications are reliable and productive. CD Couplings are designed so that the working part is made of a composite material. The composite disc design withstands the punishment and stress of a servo motor, “everything a variable speed pump drive system can dish out,” report OEM designers. They also report that CD couplings enable these systems to not only perform well in test lab environments, but more importantly, on the production floor.

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