Flange and Shaft Options
Solid Shafts with Synchro, Clamp & Square Flanges
POSITAL provides a wide range of solid shaft solutions including synchro, clamp, and square flanges. Various metric and inch diameters as well as flats and keys are also available for solid shafts. POSITAL FRABA encoders' mechanics are designed for high continuous shaft loads (up to 300 Newton continuous radial and axial force) which makes them very robust and offers an extended lifetime.
Advantages:
Economical for any application
Many shaft options makes it easy to customize to your application
Couplings are available to match a large range of alignment errors
Couplings and shafted encoders best absorb shock and vibration
We offer a variety of couplings and brackets to mount the encoders in various applications.
Flange Options
Clamp Flanges
Clamp flanges are the most versatile in assembly (i.e. clamping, use of front tapped holes, clamping discs). Clamp flanges can be installed in a variety of ways including flange adapters and mounting brackets. These typically have higher shaft loads available for applications. Find an array of mounting brackets , including spring loaded ones for measuring wheels and couplings.
Synchro Flanges
Synchro Flanges were originally designed for use on motors and gearboxes. They are more compact than a clamp flange. Synchro flanges can be installed with clamping discs or directly onto the face with fastening threads. We offer various clamping disc options, mounting domes, and couplings.
Square Flanges
Square flanges are the most common flanges in the US and are extremely efficient to mount. These square flanges are offered in the common 2" and 2.5" sizes with several shaft options.
Shaft Options
Blind Hollow Shafts
POSITAL offers blind hollow shaft flanges (aka hub shafts) for a wide range of shaft diameters. With a blind hollow flange design, the shaft does not pass completely through the encoder but rather resides inside the housing therefore clamping rings and set screws are used to mount the encoder on the shaft. Various anti-rotation tether options allow easy assembly to any motor or machine frame.
Advantages:
No elastic coupling required
Reduces total axial length compared to a shafted encoder
Versatility in mounting
Better environmental protection than thru-shaft units
See our complete list of torque supports and clamping rings .
Through Hollow Shafts
Through Hollow options are also available through POSITAL's portfolio. With this kind of design, the shaft completely passes through the body of the encoder.
Advantages:
Least axial length required
Can be fixed on any point of the shaft
Shaft still accessible to attach a fan wheel, hand crank, etc.
POSITAL has a large range of reducing adapters to make mounting even simpler.
