Finer Power curved Jaw Coupling Full Hub, GE28-1a
Available
Full Hub are hubs for curved jaw couplings, with a pilot bore, in sizes GE19 to GE90. Hub type 1a is the full hub. Curved jaw couplings join two shafts with a hub on each shaft and a flexible element between the curved jaws. The element absorbs shock and vibration, and takes up a small amount of misalignment between the shafts. Elements come in two hardnesses, 92 Shore A (yellow) and 98 Shore A (red), and the red element is rated for more torque in every size.
Each hub has a pilot bore, so you can have it bored and keywayed to suit your shaft within the bore range for the size. The elements are sold separately.
Where this product is used
- Motor to pump, fan and blower connections
- Gearbox and conveyor drives
- Compressor and generator sets
- General machinery drives with shock loading
Features
- Pilot bore hub, bore to suit within the range
- Hub type 1a (full hub)
- Sizes GE19 to GE90, up to 90mm bore
- Rated torque for both the 92 Shore A yellow and the 98 Shore A red element
- Maximum speed, mass and main dimensions for every size
Key specifications
| Specification | Detail |
|---|---|
| Sizes | GE19 to GE90 (10 models) |
| Hub type | 1a, full hub |
| Bore type | Pilot bore (bore to suit) |
| Bore range | 19 to 90mm |
| Outside diameter D | 40 to 200mm |
| Mass | 0.19 to 17.89kg |
| Maximum speed | 3,750 to 19,000rpm |
| Rated torque, 92 Shore A | 10 to 2,400 Nm |
| Rated torque, 98 Shore A | 17 to 3,600 Nm |
Sizes available
| Model | Bore min (mm) | Bore max (mm) | D (mm) | D1 (mm) | S (mm) | L1 (mm) | L2 (mm) | L (mm) | Mass (kg) | Max rpm | Torque 92A (Nm) | Torque 98A (Nm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GE19 | 19 | 24 | 40 | 32 | 1 | 39 | 25 | 65 | 0.19 | 19,000 | 10 | 17 |
| GE24 | 22 | 28 | 56 | 40 | 1 | 46 | 30 | 77 | 0.38 | 14,000 | 35 | 60 |
| GE28 | 28 | 38 | 65 | 48 | 1.5 | 52.5 | 35 | 89 | 0.62 | 11,800 | 95 | 160 |
| GE38 | 38 | 45 | 80 | 66 | 1 | 66 | 45 | 112 | 1.36 | 9,500 | 190 | 325 |
| GE42 | 42 | 55 | 95 | 75 | 1 | 73 | 50 | 124 | 2.03 | 8,000 | 265 | 450 |
| GE48 | 48 | 60 | 105 | 85 | 1.5 | 80.5 | 56 | 138 | 2.85 | 7,100 | 310 | 525 |
| GE55 | 55 | 70 | 120 | 98 | 2 | 91 | 65 | 158 | 4.32 | 6,300 | 410 | 685 |
| GE65 | 22 | 65 | 135 | 115 | 1.5 | 105.5 | 75 | 182 | 6.66 | 5,600 | 625 | 940 |
| GE75 | 30 | 75 | 160 | 135 | 1 | 120 | 85 | 206 | 10.48 | 4,750 | 1280 | 1920 |
| GE90 | 40 | 90 | 200 | 180 | 1.5 | 139.5 | 100 | 241 | 17.89 | 3,750 | 2400 | 3600 |
Choosing the right option
Choose the size from the torque you need to transmit and the shaft sizes. Use the rated torque for the element you want: the yellow 92 Shore An element or the red 98 Shore An element. Apply a service factor for the type of machine before you check the rating. Each coupling needs two hubs and one element, and the element is sold as Curved Jaw Coupling Red/Yellow Shore Element.
The stepped hub version is Curved Jaw Coupling Stepped Half, Pilot Bore. Taper lock versions of the hubs are also available: see Curved Jaw Coupling Flange Taperlock Half and Curved Jaw Coupling Hub Taperlock Half.
Bore the hub concentric with its outside diameter and keep within the maximum bore for the size. Align the two shafts as closely as you can before fitting the coupling, and check the alignment again once the coupling is fitted. Good alignment gives the longest life, whatever the coupling type.
| Option | Part number | SKU |
|---|---|---|
| GE19-1a | GE19-1A | A0112404 |
| GE24-1a | GE24-1A | A0112403 |
| GE28-1a | GE28-1A | A0112402 |
| GE38-1a | GE38-1A | A0112401 |
| GE42-1a | GE42-1A | A0112400 |
| GE48-1a | GE48-1A | A0112399 |
| GE55-1a | GE55-1A | A0112398 |
| GE65-1a | GE65-1A | A0112397 |
| GE75-1a | GE75-1A | A0112396 |
| GE90-1a | GE90-1A | A0112395 |
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Curved Jaw Coupling Full Hub, Pilot Bore, GE19 to GE90: GE28-1a
SKU: A0112402 | Model: GE28-1A
GE28 curved jaw coupling full hub, pilot bore, 28 to 38mm bore, 65mm diameter, 0.62kg.