ETP® Keyless Shaft Bushings
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Zero-Max Offers ETP Bushings For Improved Mounting Speed, Frequency & Precision
Standard keyless bushings rely on keyways and tapers, which can weaken or cause excess wear to shaft couplings or other components in your system. Zero-Max’s ETP keyless shaft bushings provide secure, fast, and precise shaft-to-hub connections in demanding applications. Zero-Max’s ETP keyless locking devices are designed to solve specific application requirements, such as phasing and timing to synchronize machine components.
ETP Keyless shaft bushings can be fastened, adjusted and removed with only a few actuating screws (a single screw in many cases), and can be mounted/adjusted/removed hundreds to thousands of times (depending on size/model) making them ideal for high frequency applications in which downtime is critical and costly. The innovative design results in ulta-low runout and allows for easy balance at higher speeds. Additionally, ETP Keyless shaft bushings do not “walk” along the shaft during actuation which allows for the precise location mounting of shaft components.
For more information on our ultra-low runout, ETP keyless shaft bushings, contact us or find your local sales representative.
ETP® Keyless Shaft Bushing Designs
ETP Keyless Shaft Bushings Provide Secure Hub-to-Shaft Connections
Faster Mounting
Select Zero-Max ETP keyless shaft bushings feature single screw actuation that allow for components to be mounted or dismounted in seconds for reduced assembly time and faster changeouts. Additional models require only a few mounting screws, and all models require only low tightening torques. These fast changeovers minimize downtime for field services, and require no special tools. ETP keyless shaft bushings slide easily onto shafts to quickly and securely lock motion control components into position. Disassembly of the shaft-to-hub connection is equally fast. Single screw designs include:
- ETP-Express and Stainless Steel Express Keyless Bushings
- ETP-Power Locking Bushings.
- ETP-Techno® Bushings
High Frequency Capabilities
While some mechanical keyless bushings wear out after as few as 10 mountings, Zero-Max’s ETP hydraulic-based keyless shaft bushings hold up to over 2,000 mountings depending on your shaft size and ETP keyless shaft bushing model. ETP keyless shaft bushings can be easily mounted and dismounted repeatedly and with few (as few as one) mounting screws. This makes them ideal when repeated fastening and readjustment is required, either rotationally or axially. Zero Max offers the ETP-Express Series, ETP-Classic Series and ETP-Power Series, in addition to corrosion resistant keyless bushings including:
Precise mountings For Lower Runout
ETP keyless bushings feature double-walled sleeves and tightening mechanisms that form solid, continuous connections between shafts and hubs when tightened. Zero-Max ETP keyless bushings utilize a uniform distribution of pressure assuring no axial movement during mounting and an ultra-high level of concentricity of the mounted component. This results in precise component positioning and lower runout than competing bushings.Check out the ETP-Techno Series for the industry’s lowest runout keyless bushing.
Additional ETP Keyless Bushings Features & Benefits
- Zero Backlash
- Reduced Size Requirements for Mounted Components
- Good Corrosion Resistance (Stainless Models Available)
- Superior Concentricity
- Low Profile Dimensions (Minimized Hub Diameter)
- No Keyway Required
- Reduced Machining Costs
- Customization Options
ETP-Classic Keyless Shaft Bushings
The ETP-Classic Series is comprised of a double-walled hardened steel sleeve filled with a specially designed pressure medium. When the ETP-Classic’s clamping screws are tightened, the sleeves expand uniformly against hub and shaft to create a precise and rigid connection.
ETP-Classic R Stainless-Steel Keyless Shaft Bushings
ETP-Classic R locking bushings feature stainless-steel components, making them ideal for food processing and pharmaceutical applications, as well as those requiring frequent washdown.
ETP-Express Keyless Shaft Bushings
ETP-Express keyless bushings utilize a single actuation screw for pressurization, allowing for the fastest installation or repositioning of our locking bushings. Because the screw is tightened from the radial direction, no shaft space is used for mounting tools and other components can be flush mounted along the shaft.
ETP-Express R Stainless Steel Keyless Shaft Bushings
ETP-Express R keyless bushings combine the advantages of stainless steel components with the same single-screw actuation as standard ETP-Express keyless bushings for the fastest possible installation and best corrossion protection.
ETP-Techno Keyless Shaft Bushings
The ETP-Techno Series are our highest precision keyless bushings. Designed for ultra-high concentricity in applications that require frequent mounting/dismounting or adjustments, these single actuation screw locking bushings have a runout accuracy of 0.0002” TIR or less. All ETP-Techno models operate on a self-contained hydraulic system.
ETP-Power Keyless Shaft Bushings
Comprised of a double-walled steel sleeve filled with specialty pressure fluid, ETP-Power locking bushings use a single actuation screw in the flange to pressurize and maintain pressure and position of the bushing. The ETP-Power allows for higher radial loads and also features two counterbored holes in the mounting flange for use in retaining the mounted component.
ETP-Hyloc Keyless Shaft Bushings
ETP-Hyloc bushings are hydro-mechanical connections that consist of a double-walled steel sleeve enclosing a tapered moveable piston. An external hydraulic pump is required for mounting and dismounting. The ETP-Hyloc is ideal for applications with extremely high radial load requirements.
ETP-Hydropress Keyless Shaft Bushings
Users can vary the transmittable torque or axial force of ETP-Hydropress keyless shaft bushings by changing the mounting pressure. These locking bushings can be mounted quickly, using only a grease pump. They are designed for radial or axial connection and provide easy mounting/dismounting of large components in tight spaces.
Contact Us for High Performance ETP Keyless Bushings
Zero-Max ETP keyless shaft bushings use a hydraulic design to provide reliable shaft-to-hub connections without adding stresses or wear to mounted components. With numerous models and styles to choose from, we have the right solution for any application. Request a quote on ETP locking bushings or contact us for more information.* ETP trademarks are owned by ETP Transmission AB, Sweden.
