

This H‑shape coupling insert is the elastomer buffer block specially designed for N‑EUPEX pin‑type flexible shaft couplings. It transmits torque while absorbing shock, dampening vibration and compensating parallel, angular and axial shaft misalignment. Multiple material grades including NBR, CSM/SBR, TPU and nylon are available for diverse industrial operating environments.
| Item | Specification |
|---|---|
| Available Material | NBR, CSM/SBR, TPU, Nylon |
| Color | Black, yellow, red, purple, green, beige, custom colors |
| Surface Finish | Smooth moulded surface |
| Hardness Range | 70‑98 Shore A |
| Tensile Strength | 8‑55 MPa |
| Elongation | 400%‑650% |
| Tear Strength | 35‑155 KN/m |
| Density | 1.25 g/cm³ |
| Impact Elasticity | >25% |
| Akron Abrasion Loss | <0.05 cm³/1.61 km |
| Compression Set (22h @70℃) | <10% |
| Max Working Temperature | 120°C |
Standard Available Sizes
**H‑Series**: H80, H95, H110, H125, H140, H160, H280, H350, H400, H440
**B‑Series**: B180, B200, B240, B315
**A‑Series**: A180, A200, A225, A250
Note: Matching N‑EUPEX coupling hubs can be supplied upon request. Dimension drawing is attached for reference.
Key Advantages
- Unique H‑block structure, fail‑safe performance for heavy‑duty power transmission
- Compensates parallel, angular and axial shaft misalignment, protects connected equipment
- Good oil‑resistance, wear‑resistance and anti‑aging performance
- Maintenance‑free: no lubrication required, low‑noise running
- Quick on‑site installation and replacement, reduce equipment downtime
- Multiple material options for different working conditions
- Standard sizes in stock; OEM & custom molding service supported
Application Fields
Widely applied for water pumps, fans, air compressors, gearboxes, conveyors, mining machinery, printing equipment and general‑purpose industrial drive systems.
Material Selection Tip
- **NBR**: Excellent oil‑resistant performance for oil‑contact environment
- **CSM/SBR**: General‑purpose rubber for regular vibration‑damping scenarios
- **TPU**: Higher wear‑resistance for heavy‑load & high‑impact conditions
- **Nylon**: For high‑rigidity, high‑torque transmission requirements
Packaging
Packed in poly bags, cartons, wooden pallets or crates based on order volume.
Inquiry Guide
When sending inquiry, please kindly confirm coupling size, material requirement and quantity.
OEM custom sizes, hardness and colors are acceptable.
Name: Shadow
Mobile:8615958677882
Tel:8615958677882
Whatsapp:8615958677882
Email:yc@ycrubberplastic.com
Add:West Development Zone, Sanmen County, Taizhou City, Zhejiang Province