SILENT BLOCK BUSH
Silent Block Bush- Effortless Vibration Control, Unmatched Durability
Silent block bushes are designed to effectively reduce vibrations and noise in mechanical systems. These innovative components are widely used in automotive, industrial, and construction applications to improve performance, increase component lifespan, and enhance user comfort by isolating shocks and vibrations.
At DYN Fasteners, our silent block bushes are engineered to deliver optimal vibration dampening while offering superior resistance to wear, heat, and chemicals. Crafted using advanced elastomeric materials, these bushes ensure durability and are designed for easy installation in a variety of machines and systems. With years of expertise in the manufacturing and export of high-quality fasteners, DYN Fasteners guarantees products that meet stringent international standards.
- Silent Block Bush Features: Effective Vibration Dampening, High Durability, Noise Reduction, Corrosion and Heat Resistance, Easy Installation, High Load-Bearing Capacity.
- Typical Applications: Automotive Industry, suspensions, steering columns, engine mounts, chassis, Industrial Machinery, conveyors, pumps, compressors, Construction Equipment, construction machinery, Marine Applications, Reduces vibrations in ships and boats, ensuring smoother performance in harsh marine environments, Railways, train suspension systems, buffers to minimize vibrations and noise from rail tracks, Home Appliances, Applied in washing machines, refrigerators, air conditioning.
- Finish Options: Standard Finish Silent Block Bush, Coated Finish Silent Block Bush, Rubberized Finish Silent Block Bush, Custom Finish Silent Block Bush.
| Size (Diameter x Length) | Inner Diameter (mm) | Outer Diameter (mm) | Length (mm) |
| Small | 10 mm | 20 mm | 20 mm |
| Medium | 15 mm | 25 mm | 30 mm |
| Large | 20 mm | 35 mm | 50 mm |
| Custom Sizes | Available upon request | Available upon request | Available upon request |
| Material Type | Chemical Composition |
| Natural Rubber (NR) | 100% Natural Rubber (C5H8), vulcanized with sulfur for improved strength and elasticity. |
| Nitrile Butadiene Rubber (NBR) | Nitrile (18%-50%), Butadiene (50%-82%), enhanced with additives for oil and fuel resistance. |
| Polyurethane (PU) | Polyether or polyester-based polyurethanes (C10H14N2O4), combined with hardeners. |
| EPDM (Ethylene Propylene Diene Monomer) | Ethylene (45%-55%), Propylene (45%-55%), Diene (1%-10%) for weather and ozone resistance. |
| Silicone Rubber (SI) | Polysiloxane (Si-O-Si) backbone, organic side groups (C6H18O2Si) for high-temperature stability. |
| Chloroprene Rubber (CR) | Neoprene (C4H5Cl), chlorine atoms providing resistance to oil, heat, and weather. |
| Material Type | Tensile Strength | Elongation at Break | Hardness (Shore A) | Density | Temperature Range | Other Properties |
| Natural Rubber (NR) | 20-25 MPa | 400-700% | 50-60 | 1.1-1.2 g/cm³ | -20°C to 70°C | – |
| Nitrile Butadiene Rubber (NBR) | 10-20 MPa | 300-500% | 60-70 | – | -30°C to 120°C | Oil & Fuel Resistance |
| Polyurethane (PU) | 40-55 MPa | 250-600% | 60-85 | 1.1-1.2 g/cm³ | -40°C to 80°C | – |
| EPDM (Ethylene Propylene Diene Monomer) | 15-30 MPa | 200-400% | 60-70 | – | -50°C to 150°C | Ozone & UV Resistance |
Chemical Composition of Steel Grades:
| Steel Grade | Carbon (C) | Manganese (Mn) | Chromium (Cr) | Nickel (Ni) | Molybdenum (Mo) | Phosphorus (P) | Sulfur (S) | Silicon (Si) |
| Carbon Steel SAE 1010 | 0.08-0.13% | 0.30-0.60% | – | – | – | ≤0.04% | ≤0.05% | – |
| Carbon Steel SAE 1020 | 0.18-0.23% | 0.30-0.60% | – | – | – | ≤0.04% | ≤0.05% | – |
| Stainless Steel AISI 304 | ≤0.08% | 2.00% | 18-20% | 8-10.5% | – | ≤0.045% | ≤0.03% | 1% |
| Stainless Steel AISI 316 | ≤0.08% | 2.00% | 16-18% | 10-14% | 2-3% | ≤0.045% | ≤0.03% | 1% |
Mechanical Properties of Steel Grades:
Steel Grade | Tensile Strength | Yield Strength | Elongation | Hardness |
Carbon Steel SAE 1010 | 410-550 MPa (59,500-79,750 psi) | 205-275 MPa (29,725-39,775 psi) | 33-42% | 119 HB (Brinell Hardness) |
Carbon Steel SAE 1020 | 420-600 MPa (61,000-87,000 psi) | 280-400 MPa (40,600-58,000 psi) | 25-33% | 126 HB (Brinell Hardness) |
Stainless Steel AISI 304 | 505-745 MPa (73,200-107,700 psi) | 215-290 MPa (31,200-42,000 psi) | 40-50% | 170-210 HB (Brinell Hardness) |
Stainless Steel AISI 316 | 515-750 MPa (74,800-108,300 psi) | 205-290 MPa (29,725-42,000 psi) | 35-50% | 170-200 HB (Brinell Hardness) |
- Standards:
ISO 9001, ISO 14001.
DIN 53504.
SAE J200. - Certifications: CE Certification, RoHS Compliant, REACH Compliance.
