TRASCO 42/55 GRMALU (GRMALU42/55BF32) - Hub (Type B, d = 32H7, with Keyway, Al Alloy)
Shaft Coupling
Price without VAT: 45.69€
Price including VAT: 55.29€ with VAT
Catalogue price excluding VAT:
46.63€
The product is custom-made from a semi-finished product. It cannot be returned or replaced. In accordance with the provisions of § 1837, letter d) of Act No. 89/2012 Coll., the Civil Code (hereinafter referred to as the “Civil Code”), the consumer may not withdraw from a contract of purchase in the sense of the provisions of § 2079 et seq. of the Civil Code, if it concerns a contract on delivery of goods that have been adjusted by request of the consumer or for the consumer, concluded by means of remote communication.
At supplier,
we usually ship within 3 weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
We usually made this product from a semi-finished product during the first working day after the order.
Specifications
Finished bore with H7 tolerance.
In the TYMA Product Catalogues you can find this material also described with the abbreviation AL.
Shaft Coupling Description
TRASCO 42/55 GRMALU (GRMALU42/55BF32) - Hub (Type B, d = 32H7, with Keyway, Al Alloy) is a part designed for SIT TRASCO shaft couplings. It is made of aluminium alloy.
SIT TRASCO are torsionally flexible, puncture-proof shaft couplings with two metal hubs with front claws and a polyurethane element. They transmit torque through pressure-stressed elastic star-shaped buffer which absorbs shock and torsional vibration. These GRMALU hubs are made of aluminium alloy with a seating or in straight design with finished H7 bore, keyway according to DIN 6885 and bore for lock screw.
GRMALU hubs are sometimes simply called as the TRASCO GR series basic aluminium hubs, or labeled as GR ALU or GRMP ALU.
Construction

- GRMALU type A (with a seating) hub with finished bore, keyway and bore for lock screw
- GRMALU type B (straight) hub with finished bore, keyway and bore for lock screw
- Elastic star-shaped element
Typical Applications
SIT TRASCO elastic couplings with GRMALU hubs are intended for lower performance in a wide range of industries.
They are applied in compressors, pumps and construction machinery. But especially in smaller machines or in drives for conveyor systems and packaging machines in the food, chemical, glass, paper, wood and rubber industries.
Properties
- Small size, compact version
- Polyurethane elastic element allows the compensation of angular, axial and radial transplanting
- Possibility of settlement of length shafts deviations
- Couplings areresistant to oil, chemicals and high temperature
Documents for Download
Questions about This Product?
Don’t hesitate to contact us – our specialists will be happy to help with any questions about this shaft coupling.
Shaft Coupling Manufacturer Profile
SIT S.p.A. is a company focused on mechanical power transmission (SIT stands for Società Italiana Trasmissioni, meaning Italian Power Transmission Company). Under the SIT brand, it develops, engineers, manufactures, and distributes high-quality solutions and components for industrial applications across a wide range of sectors – from automotive and precision engineering to the food and textile industries, as well as chemical plants and logistics centers.
Together with Elatech S.r.l. and other companies, SIT S.p.A. is part of the Scaglia Group. The Group operates in Europe, North America, and Asia, and comprises 7 manufacturing facilities and 6 subsidiaries with more than 1,000 employees. As part of the Group, the individual companies benefit from shared technologies and innovations, providing financial stability and sustainable growth.
We are an authorized distributor of shaft couplings, bushes, sprockets, and pulleys from SIT S.p.A., as well as polyurethane timing belts and conveyor belts from Elatech S.r.l.
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