ZERO MAX MOTION CONTROL COMPONENTS
For over 50 years, Zero-Max has created innovative solutions to motion control problems. Together with Zero-Max, we can engineer a solution to solve your motion control requirements. 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. Over 1 million Zero-Max Drives have been put to work in a wide variety of applications. They are available from distributors in all major markets throughout the world.
Crown® Gear Drives are available with 1:1 and 2:1 ratios. High quality AGMA class 10 spiral bevel gears. Stainless steel shafts and aluminum housings are standard on all Crown® Gear Drives.
Adjustable Speed Drives
Easy to install and maintenance free. Zero-Max Drives offer infinitely variable speeds from 0 rpm to 1/4 of input rpm. 5 models with torque ranges from 12 in-lbs to 200 in-lbs.
These high performance couplings out last bellows and steel disc design couplings. The unique design of the composite disc enables the CD Couplings® to withstand punishing applications and deliver high precision performance.
Schmidt® Offset Couplings are designed to handle high amounts of parallel offset up to 17.00″. Standard models with torque capacities up to 459,000 in-lbs.
How to select a right angle crown gear drive
- Determine Your Preferred Input/Output Ratio. Standard ratios are 1:1 and 2:1. It is also possible to use a step up ratio of 1:2 by using shaft #2 as the input shaft. (See drawings on pages 3–5).
- Designate Which Shafts Are To Be Input And Output Shafts. This step is especially important to determine that no shaft will turn faster than 2000 RPM. If shaft #2 in the 2:1 ratio models is selected as the input shaft, it can turn at a maximum of 1000 RPM. In the 1:1 ratio models it makes no difference. However, the choice in either case will affect your mounting.
- Be Certain That The Designated Output Shaft Has A Torque Capacity Greater Than Your Applications Load. Consult the tables on the pages 6-8, and be sure to apply the service factors from the chart below.
- Choose Drive Type. Use either 2-way or 3-way configuration.
- Select The Correct Model Number. On pages 3–5, select the correct model number; note that units with 3/8 inch shafts have flats and units with 1/2, 5/8, 3/4 and 1 inch shafts have standard keyways. Also note that 1 inch shaft models are available in 3-way type only.
- If modifications of shafts and/or housings are required for your application, send a drawing and a description of the application to the factory.
Features of the Adjustable Speed Drive
Features of the Adjustable Speed Drive
- Compact and easy to handle.
- Simple to install. No special wiring or training.
- Easy to operate with lever or screw control. Repeatable
- Use adjustable speed drives anywhere on machine. Accepts input to 2,000 RPM. Ideal secondary controller.
- Delivers constant torque throughout the speed range.
- 4:1 speed reduction. Drive is often usable without additional speed reduction.
Adjustable Speed Drive Benefits
- Permits slow or fast, small or large speed changes. Speed set-ups are made quickly and easily. Ideal for dancer applications / constant speed changes.
- Leave drive at one setting. No daily speed cycling.
- Accurate speed holding. No “wear-in” period / constant speed operation.
- Zero-Max adjustable speed drives accepts any input. It’s the world’s most versatile, economical secondary drive.
- Goes to zero output. Ideal for use as a clutch.
- Simple maintenance. Factory lubricated.
- Low cost and proven design. More than 1,000,000 sold. Ideal for users and original equipment manufacturers.
- Sealed housing. Use in most atmospheres. Can be mounted in any position.
- Versatile shaft / control / motor options.
- Infinitely adjustable. 0-400 RPM speed range with 1800 RPM input.
Selecting the right CD Coupling
- Service factor.
- Continuous and peak torque requirements, and/or motor HP. • Coupling RPM.
- Distance between shaft ends. (DBSE).
- Misalignment requirements.
- Physical space limitations.
- Hub bores, with or without keyways.
- Other environmental considerations.