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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

6.20 excl. VAT

7.50 incl. VAT

TRASCO 19/24 GRMP (GRMP19/24L) - Hub (Type BL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

11.66 excl. VAT

14.11 incl. VAT

TRASCO 24/32 GRMP (GRMP24/32A) - Hub (Type A, Unbored, Cast Iron)

Shaft Coupling

In Stock

8.55 excl. VAT

10.35 incl. VAT

TRASCO 24/32 GRMP (GRMP24/32AL) - Hub (Type AL, Unbored, Cast Iron)

Shaft Coupling

In Stock

14.51 excl. VAT

17.55 incl. VAT

TRASCO 24/32 GRMP (GRMP24/32B) - Hub (Type B, Unbored, Cast Iron)

Shaft Coupling

In Stock

10.54 excl. VAT

12.75 incl. VAT

TRASCO 24/32 GRMP (GRMP24/32BL) - Hub (Type BL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

15.95 excl. VAT

19.30 incl. VAT

TRASCO 28/38 GRMP (GRMP28/38A) - Hub (Type A, Unbored, Cast Iron)

Shaft Coupling

In Stock

12.84 excl. VAT

15.53 incl. VAT

TRASCO 28/38 GRMP (GRMP28/38AL) - Hub (Type AL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

19.94 excl. VAT

24.13 incl. VAT

TRASCO 28/38 GRMP (GRMP28/38B) - Hub (Type B, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

14.04 excl. VAT

16.99 incl. VAT

TRASCO 28/38 GRMP (GRMP28/38BL) - Hub (Type BL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

21.85 excl. VAT

26.44 incl. VAT

TRASCO 38/45 GRMP (GRMP38/45A) - Hub (Type A, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

19.33 excl. VAT

23.39 incl. VAT

TRASCO 38/45 GRMP (GRMP38/45AL) - Hub (Type AL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

38.69 excl. VAT

46.81 incl. VAT

TRASCO 38/45 GRMP (GRMP38/45B) - Hub (Type B, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

21.98 excl. VAT

26.59 incl. VAT

TRASCO 38/45 GRMP (GRMP38/45BL) - Hub (Type BL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

42.93 excl. VAT

51.94 incl. VAT

TRASCO 42/55 GRMP (GRMP42/55A) - Hub (Type A, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

27.66 excl. VAT

33.47 incl. VAT

TRASCO 42/55 GRMP (GRMP42/55AL) - Hub (Type AL, Unbored, Cast Iron)

Shaft Coupling

In Stock

50.62 excl. VAT

61.25 incl. VAT

TRASCO 42/55 GRMP (GRMP42/55B) - Hub (Type B, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

32.24 excl. VAT

39.01 incl. VAT

TRASCO 42/55 GRMP (GRMP42/55BL) - Hub (Type BL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

58.29 excl. VAT

70.53 incl. VAT

TRASCO 48/60 GRMP (GRMP48/60A) - Hub (Type A, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

35.23 excl. VAT

42.63 incl. VAT

TRASCO 48/60 GRMP (GRMP48/60AL) - Hub (Type AL, Unbored, Cast Iron)

Shaft Coupling

At Supplier

Within 3 Weeks

75.05 excl. VAT

90.81 incl. VAT

Products are sorted by name in ascending order.

Total 3 pages

Couplings Construction

SIT TRASCO Coupling Construction with GRMP Hubs

  1. GRMP type A (with a seating) unbored hub
  2. GRMP type B (straight) unbored hub
  3. Elastic star-shaped element

Couplings Fields of Use

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.

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
  • Couplings areresistant to oil, chemicals and high temperature

Couplings 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

TRASCO Couplings

SIT Catalogue

English (PDF 1.35 MB)


Ask Our Specialists


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

logo SIT

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.

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