SIT TRASCO GRMP Hubs (Unbored)
GRMP unbored hubs are parts designed for SIT TRASCO shaft couplings. They are sometimes simply called as the TRASCO GR series basic hubs, or labeled as GR P or GR MP.
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 GRMP hubs are made of steel or cast iron in short or long version with a seating or in straight design as unbored. They are therefore supplied as semi-finished products and the bore must be adjusted before mounting the coupling on the shafts.
Products are sorted by name in ascending order.
TRASCO 19/24 GRMP (GRM19/24) - Hub (Type B, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
6.40€ excl. VAT
7.74€ incl. VAT
TRASCO 19/24 GRMP (GRMP19/24L) - Hub (Type BL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
12.03€ excl. VAT
14.56€ incl. VAT
TRASCO 24/32 GRMP (GRMP24/32A) - Hub (Type A, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
8.83€ excl. VAT
10.68€ incl. VAT
TRASCO 24/32 GRMP (GRMP24/32AL) - Hub (Type AL, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
14.97€ excl. VAT
18.11€ incl. VAT
TRASCO 24/32 GRMP (GRMP24/32B) - Hub (Type B, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
10.88€ excl. VAT
13.16€ incl. VAT
TRASCO 24/32 GRMP (GRMP24/32BL) - Hub (Type BL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
16.46€ excl. VAT
19.92€ incl. VAT
TRASCO 28/38 GRMP (GRMP28/38A) - Hub (Type A, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
13.25€ excl. VAT
16.03€ incl. VAT
TRASCO 28/38 GRMP (GRMP28/38AL) - Hub (Type AL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
20.58€ excl. VAT
24.91€ incl. VAT
TRASCO 28/38 GRMP (GRMP28/38B) - Hub (Type B, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
14.49€ excl. VAT
17.53€ incl. VAT
TRASCO 28/38 GRMP (GRMP28/38BL) - Hub (Type BL, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
22.56€ excl. VAT
27.29€ incl. VAT
TRASCO 38/45 GRMP (GRMP38/45A) - Hub (Type A, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
19.95€ excl. VAT
24.14€ incl. VAT
TRASCO 38/45 GRMP (GRMP38/45AL) - Hub (Type AL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
39.93€ excl. VAT
48.31€ incl. VAT
TRASCO 38/45 GRMP (GRMP38/45B) - Hub (Type B, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
22.68€ excl. VAT
27.45€ incl. VAT
TRASCO 38/45 GRMP (GRMP38/45BL) - Hub (Type BL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
44.30€ excl. VAT
53.61€ incl. VAT
TRASCO 42/55 GRMP (GRMP42/55A) - Hub (Type A, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
28.55€ excl. VAT
34.54€ incl. VAT
TRASCO 42/55 GRMP (GRMP42/55AL) - Hub (Type AL, Unbored, Cast Iron)
Shaft Coupling
In Stock We update the stock availability information every 2 hours.
The goods we have in stock are usually ready for shipping or personal collection no later than the next working day. In case of personal collection, please do not come to pick the goods up before we contact you that the goods are ready.
52.24€ excl. VAT
63.21€ incl. VAT
TRASCO 42/55 GRMP (GRMP42/55B) - Hub (Type B, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
33.28€ excl. VAT
40.26€ incl. VAT
TRASCO 42/55 GRMP (GRMP42/55BL) - Hub (Type BL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
60.16€ excl. VAT
72.79€ incl. VAT
TRASCO 48/60 GRMP (GRMP48/60A) - Hub (Type A, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
36.36€ excl. VAT
44.00€ incl. VAT
TRASCO 48/60 GRMP (GRMP48/60AL) - Hub (Type AL, Unbored, Cast Iron)
Shaft Coupling
At Supplier
Within 3 Weeks Usual time this product is ready for shipping. Actual availability may vary due to unforeseen circumstances in exceptional cases.
77.46€ excl. VAT
93.72€ incl. VAT
Products are sorted by name in ascending order.
Shaft Coupling Construction
- GRMP type A (with a seating) unbored hub
- GRMP type B (straight) unbored hub
- Elastic star-shaped element
Typical Applications
SIT TRASCO elastic couplings with GRMP hubs are intended for the highest performance in a wide range of industries.
They are particularly applied in compressors, pumps, conveyors and construction machinery. From small precision instruments to heavy duty conveyor drives and packaging machines in the food, chemical, glass, paper, wood and rubber industries.
Properties
- High transmitted power
- 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
Coupling Code Description
Example:
TRASCO 180/200 GRMP - Hub (Type A, Unbored, Cast Iron)
| Code Part | Description |
|---|---|
| TRASCO |
SIT couplings type |
| 180/200 |
Coupling size designation |
| GRMP |
Hub type |
| Hub |
Part name |
| Type A |
Hub design – shape, length if applicable |
| Unbored |
Hub design |
| Cast Iron |
Hub material |
Documents for Download
Related Products
SIT TRASCO GRMALU Hubs (Unbored)
SIT TRASCO GRMB Hubs (Taper Bored)
SIT TRASCO GRS Spacers (Double Shaft)
We also provide design and calculation of transmission components, including shaft couplings. In the case of your interest in this service, use the detailed Drive or Coupling Calculation Form.
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.