GR Type Polyurethane Coupling - Red & Purple Mechanical Seal Style
High-quality GR type polyurethane coupling available in various colors, designed for reliable mechanical power transmission.
Key Advantages
- Exceptional resistance to wear, oil, ozone, and aging
- Excellent hydrolysis resistance (ideal for tropical climates)
- Protects drive systems against dynamic overload
- Superior physical properties and performance
- Easy installation and maintenance
- OEM compatibility and customization
Operating Conditions
Temperature Range: -40°C to +100°C
Torque Capacity: 22.4-2500 NM
Material Specifications
Material: TPU (Thermoplastic Polyurethane)
Hardness: Yellow - 92 Shore A | Red - 98 Shore A | Green - 64 Shore D
Standard: KTR, Germany
Standard GR Series Dimensions
| Size |
Material |
OD (mm) |
ID (mm) |
H (mm) |
H1 (mm) |
Lamella Qty |
| GR14 | Polyurethane | 30 | 10.5 | 12 | 10 | 4 |
| GR19 | Polyurethane | 40 | 18 | 14.5 | 12 | 6 |
| GR24 | Polyurethane | 54 | 26 | 15.2 | 14 | 8 |
| GR28 | Polyurethane | 65 | 30 | 19 | 15 | 8 |
| GR38 | Polyurethane | 80 | 38 | 22 | 18 | 8 |
| GR42 | Polyurethane | 95 | 46 | 24 | 20 | 8 |
| GR48 | Polyurethane | 104 | 51 | 25.5 | 21 | 8 |
| GR55 | Polyurethane | 120 | 60 | 27 | 22 | 8 |
| GR65 | Polyurethane | 135 | 68 | 32 | 26 | 8 |
| GR75 | Polyurethane | 160 | 80 | 37 | 30 | 10 |
| GR90 | Polyurethane | 199 | 100 | 42 | 34 | 10 |
| GR100 | Polyurethane | 225 | 113 | - | 38 | 10 |
| GR110 | Polyurethane | 255 | 127 | - | 42 | 10 |
| GR125 | Polyurethane | 290 | 147 | - | 46 | 10 |
| GR140 | Polyurethane | 320 | 165 | - | 50 | 10 |
| GR160 | Polyurethane | 370 | 190 | - | 57 | 10 |
| GR180 | Polyurethane | 420 | 220 | - | 64 | 12 |
Technical Specifications
Material: Polyester, CSM/SBR
Color: Yellow, Red, Purple, Green, Black, etc.
Surface: Smooth
Tensile Strength: 12-55 Mpa
Hardness: 80-98 Shore A
Elongation: 400%-650%
Density: 1.25 g/cm³
Elasticity Impact: >25%
Tear Strength: 35-155 KN/m
Akron Abrasion Loss: <0.05 cm³/1.61km
Compression Set (22h*70°C): <10%
Working Temperature: 120°C
Available Standard Sizes
Polyurethane Couplings: GR14, GR19, GR24, GR28, GR38, GR42, GR48, GR55, GR65, GR75, GR90, GR100, GR110, GR125, GR140, GR160, GR180
Additional Series: MT, HRC, L, FALK-R series
Rubber Couplings: Hb, HRC, L, NM, Gear series
Custom sizes available according to buyer's drawings
When submitting an inquiry, please confirm the product number and required quantity for accurate pricing and availability.
Product Images
