TRASCO® couplings are dimensionally manufactured with hub types “A” and “B”, the difference being the maximum shaft diameter they can accept (corresponding respectively to the first and second code numbers). The long hub “L” version (which allows complete coverage of the motor shaft) is available in “A” and “B” versions.
TRASCO® Couplings
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Description
The TRASCO® coupling is flexible, homokinetic and ensures best-in-class performance in relation to the physical space occupied.
Very compact design, ensures power transmission and absorption of peak loads and torsional vibrations.
Elastic polyurethane star design that compensates for angular and radial misalignments and absorbs small shaft length variations.
Characteristics
- It absorbs torsional vibrations
- It compensates for axial, radial, and angular misalignments.
- Available in cast iron, aluminum, steel and for SER-SIT® tapered shaft mounting
- Available upon request
- Couplings certified in accordance with ATEX Directive 2014/34/EU
Available configurations TRASCO®
GR Base Program
GRB Implementation for SER-SIT® tapered hub
TRASCO® GRB type couplings for SER-SIT® tapered bushings are manufactured in GG25 cast iron.
They combine the high performance typical of TRASCO® standard couplings with the advantages of easy assembly and disassembly using the SER-SIT® tapered bushing.
These cubes are manufactured in two different assembly versions:
B1: Installation of tapered hub from the outside
B2: Tapered hub installation from the inside (not available for size 90/100)
The GRB design eliminates the problem of corrosion during fitting, making it suitable for all types of machinery.
B1 type hubs allow axial displacement for star replacement.
GR CAL Execution with SIT-LOCK® CAL 8 clamping bushings
This version has been introduced to incorporate the advantages offered by SIT-LOCK® CAL 8 locking bushings in the axle-hub connection. The system allows for quick, secure, backlash-free assembly without the use of a keyway, eliminating the need for lock washers, spacers, and retaining rings.
We can design multiple solutions to meet all kinds of application needs.
GRL execution double cardan with extended shaft
The GRL CAL3 series allows the connection of two shafts (even two with different spacing) via two TRASCO® couplings and a custom-sized intermediate shaft (length “LR2”), mounted to the hubs using clamping bushings. The presence of two polyurethane stars provides high damping capacity and allows for greater radial misalignment. By default, the hubs are made of cast iron, while the shafts are made of steel, but different materials can be used depending on the application.
GRLCAL3 double cardan version with extended shaft and SIT LOCK 3 clamping bushing
The GRL CAL3 series allows the connection of two shafts (even two with different spacing) via two TRASCO® couplings and a custom-sized intermediate shaft (length “LR2”), mounted to the hubs using clamping bushings. The presence of two polyurethane stars provides high damping capacity and allows for greater radial misalignment. By default, the hubs are made of cast iron, while the shafts are made of steel, but different materials can be used depending on the application.
GRF flanged version
The GRF series with flanges has been developed for applications in heavy machinery and to combine different shaft and flange solutions.
GRFC compact flanged version
The GRFC series has the same characteristics as the GRF series but is more compact.
GRS double gimbal execution
The GRS series allows for greater compensation of axial, radial, and angular misalignment. Furthermore, the use of a double star design doubles the twist angle and provides a very high damping effect.
The GRS series allows for compensation of high axial, radial, and angular misalignment. Furthermore, the use of a double spider allows for twice the twist angle and provides a high level of damping.
GRFRT implementation for brake drums
The GR FRT series has been developed to suit drum brake transmission (FRT).
An elastic coupling is considered to consist of:
Standard bucket (any from the TRASCO family)
Elastic star
Special hub connected to the brake drum
Furthermore, it is possible to mount different brake drums sized for any type of coupling.
GRFRD implementation for disc brakes
The GR FRD series has been developed to suit disc brake drivetrains (FRD).
It is an elastic coupling consisting of:
Standard bucket (any from the TRASCO family)
Elastic star
Special hub connected to the brake disc
Furthermore, it is possible to mount different brake discs sized for any type of coupling.
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