SIT TRASCO GRMB Hubs (Taper Bored)
GRMB taper bored hubs are parts designed for SIT TRASCO shaft couplings. They are sometimes simply called as the TRASCO GRB series hubs, or labeled as GR B or GR MB.
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 GRMB hubs are made of cast iron with Taper Lock bore in B1 version with external mounting or B2 version with internal mounting.
Products are sorted by name in ascending order.
TRASCO 28/38 GRMB B1 (GRMB28/38B1) - Hub (Type E, TB 1108, 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.
27.49€ excl. VAT
33.26€ incl. VAT
TRASCO 28/38 GRMB B2 (GRMB28/38B2) - Hub (Type I, TB 1108, 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.
27.49€ excl. VAT
33.26€ incl. VAT
TRASCO 38/45 GRMB B1 (GRMB38/45B1) - Hub (Type E, TB 1108, 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.
42.82€ excl. VAT
51.82€ incl. VAT
TRASCO 38/45 GRMB B2 (GRMB38/45B2) - Hub (Type I, TB 1108, 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.
42.82€ excl. VAT
51.82€ incl. VAT
TRASCO 42/55 GRMB B1 (GRMB42/55B1) - Hub (Type E, TB 1610, 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.
48.85€ excl. VAT
59.11€ incl. VAT
TRASCO 42/55 GRMB B2 (GRMB42/55B2) - Hub (Type I, TB 1610, 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.
48.85€ excl. VAT
59.11€ incl. VAT
TRASCO 48/60 GRMB B1 (GRMB48/60B1) - Hub (Type E, TB 1615, 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.
58.85€ excl. VAT
71.20€ incl. VAT
TRASCO 48/60 GRMB B2 (GRMB48/60B2) - Hub (Type I, TB 1615, 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.
58.85€ excl. VAT
71.20€ incl. VAT
TRASCO 55/70 GRMB B1 (GRMB55/70B1) - Hub (Type E, TB 2012, 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.
90.06€ excl. VAT
108.97€ incl. VAT
TRASCO 55/70 GRMB B2 (GRMB55/70B2) - Hub (Type I, TB 2012, 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.
90.06€ excl. VAT
108.97€ incl. VAT
TRASCO 65/75 GRMB B1 (GRMB65/75B1) - Hub (Type E, TB 2012, 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.
91.63€ excl. VAT
110.88€ incl. VAT
TRASCO 65/75 GRMB B2 (GRMB65/75B2) - Hub (Type I, TB 2012, 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.
91.63€ excl. VAT
110.88€ incl. VAT
TRASCO 75/90 GRMB B1 (GRMB75/90B1) - Hub (Type E, TB 2517, 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.
139.29€ excl. VAT
168.54€ incl. VAT
TRASCO 75/90 GRMB B2 (GRMB75/90B2) - Hub (Type I, TB 2517, 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.
139.29€ excl. VAT
168.54€ incl. VAT
TRASCO 90/100 GRMB B1 (GRMB90/100B1) - Hub (Type E, TB 3535, 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.
301.82€ excl. VAT
365.20€ incl. VAT
Products are sorted by name in ascending order.
Couplings Construction
- GRMB type B2 for Taper Lock bush with internal mounting
- Elastic star-shaped element
Couplings Fields of Use
SIT TRASCO elastic couplings with GRMB hubs are intended for the highest performance in a wide range of industries.
They are applied in compressors, pumps and construction machinery. Especially for conveyor systems and packaging machines in the food, chemical, glass, paper, wood and rubber industries.
Couplings Characteristics
- 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
- Simple assembly without the need to modify the bore
- Couplings areresistant to oil, chemicals and high temperature
Couplings Code Description
Example:
TRASCO 90/100 GRMB B1 - Hub (Type E, TB 3535, Cast Iron)
| Code Part | Description |
|---|---|
| TRASCO |
SIT couplings type |
| 90/100 |
Coupling size designation |
| GRMB |
Hub type |
| B1 |
Taper Lock design with external mounting |
| Hub |
Part name |
| Type E |
External mounting design |
| TB 3535 |
Type of Taper Lock bush |
| Cast Iron |
Hub material |
Documents for Download
Related Products
SIT TRASCO GRMALU Hubs (Unbored)
SIT TRASCO GRMP Hubs (Unbored)
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 Transmission Drive Design Form.
Shaft Coupling Manufacturer Profile
The group SIT S.p.A develops, engineers, manufactures and distributes high quality solutions and components for power transmission for industrial applications of excellence worldwide, with the aim of increasing the productivity of its customers’ machines and systems. With operations on 3 continents, SIT manufactures pulleys, rubber and polyurethane belts, drive couplings, locking assemblies and a wide range of accessories.
SIT belongs to a large industrial group that dates as far back as 1838. Today, thanks to over 50 years of specific experience in power transmission and a close-knit team of highly qualified professionals, the Group engages in constant technological innovation in order to offer the best application solutions in mechanical power drives.