Hub To Shaft Connector
- Design Type: Keyless locking, clamping, and adjustable power-lock connectors.
- Material Options include: carbon steel, alloy steel, stainless steel, and various special steel grades.
- Torque Capacity: Up to 250,000 N·m (customizable per shaft diameter).
- Surface Finish: Precision ground and polished to Ra ≤ 0.8 μm.
- Machining Accuracy: Tolerance up to ±0.01 mm for concentric alignment.
Technical Specifications
| Parameter | Specification |
| Product Name | Hub-to-Shaft Connector |
| Type | Keyless Locking Device / Power Lock / Clamping Hub |
| Material | Carbon/Alloy/Stainless Steel |
| Outer Diameter Range | 25 mm – 800 mm (customizable up to 1000 mm) |
| Inner Bore Range | 20 mm – 600 mm |
| Length Range | 30 mm – 400 mm |
| Torque Transmission | ≤ 250,000 N·m |
| Surface Roughness | Ra ≤ 0.8 μm |
| Machining Tolerance | ±0.01 mm |
| Heat Treatment | Quenching & Tempering / Surface Hardening |
| Forging Type | Free Forging (per Drawing) |
| Testing Methods | UT / MT / Hardness / Dimensional / Mechanical |
| Certification | ISO 9001 / PED / SGS |
| Delivery Time | 15–30 Days (Urgent) / 30–45 Days (Normal) |
Product Advantages
- Backlash-Free Transmission: Eliminates play between hub and shaft for precision alignment.
- Easy Installation: Simple tightening mechanism, no keyway machining required.
- High Torque Capacity: Uniform pressure distribution maximizes torque transfer efficiency.
- Corrosion Resistance: Surface treatments extend lifespan in harsh environments.
- Custom Fit Design: Flexible geometry for different shaft and hub diameters.
- Reusability: Can be reassembled without shaft damage or deformation.
Industries Served
- Automotive & Transportation: Universal joints, axle couplings, drive hubs.
- Heavy Machinery: Gearboxes, cranes, and rotating equipment.
- Power Transmission: Turbines, generators, and mechanical drives.
- Marine & Offshore: Corrosion-resistant couplings for propulsion systems.
- Mining & Construction: Heavy-load torque connectors for excavators and crushers.
- Automation & Robotics: Precision motion couplers requiring zero-backlash alignment.
Manufacturing Capabilities
Forging Facilities
- 6300T / 3150T / 2000T free hydraulic presses.
- 5T, 3T, 2T, 1T, 750kg, 560kg electro-hydraulic hammers.
Heating Treatment Facilities
- RTX-9 series trolley furnaces in multiple sizes (5.5–8 m chamber length).
- RJ-9-850KW vertical furnace with 15 m depth.
- RTX-12-350KW high-temperature trolley furnace.
Machining Facilities
- CNC machines (max 32-ton load).
- Heavy-duty lathes and vertical mills (up to 70 tons).
- Gantry milling machines, deep-hole boring machines, grinding and turning centers.
Testing & Quality Control
- Spectrum analysis for chemical composition.
- Ultrasonic, non-destructive, and metallographic testing.
- Mechanical property test machines for yield, tensile, hardness.
Production Process
- Raw Material Selection: Use first-grade ingot steel, inspect chemical composition.
- Forging: Heat to precise temperature, perform open die or die forging.
- Heat Treatment: Quenching, tempering, or normalizing to meet mechanical targets.
- Machining: CNC turning, boring, milling, grinding, and drilling to precision ±0.01 mm.
- Inspection: Each shaft tested via 100% ultrasonic, hardness, and tensile checks.
- Packaging & Delivery: Anti-corrosion coating, safe transport packaging, global logistics support.
Additional Value-added Services
- Quench-and-temper heat treating
- Rough and finish turning
- Ultrasonic and mechanical testing
- Dimensional inspection reports
- Customized design and programming support
Quality Assurance
- Each forging carries a test bar for mechanical testing.
- 100% ultrasonic and visual inspection before shipment.
- Hardness, tensile, and metallographic verification.
- Compliance with ASTM, DIN, GB, and EN standards.
Why Choose Boberry
Integrated Production
Complete forging-to-machining production line ensures precision and fast delivery.
Advanced Equipment
Heavy-duty forging presses and CNC systems handle large, complex mechanical component geometries.
Certified Assurance
Certified production with ISO9001, PED, SGS compliance and global OEM support.
Logistics & Delivery
Lead Time: 15–30 days (urgent) / 30–45 days (normal).
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.
Monthly Capacity: 500–1000 tons.
Packing: Wooden crates, steel frames, or per client request.
Shipment: By Sea (recommended, saves cost for forging parts) / By Air (fast but expensive).
Payment Terms: 30% deposit with balance via B/L copy; or 100% L/C at sight.
Delivery Terms: FOB, CIF, CNF.