High Precision Finished Bore Sprockets China Factory and Suppliers
Our high-precision Finished Bore Sprockets are engineered specifically for roller chains, offering a seamless integration into industrial power transmission systems. By utilizing advanced induction hardening processes and strict dimensional tolerances, these sprockets ensure maximum durability and efficiency in the most demanding mechanical environments.
Designed for versatility and longevity, our finished bore range eliminates the need for additional machining, reducing downtime and installation costs. Whether you are operating in heavy machinery or automated assembly lines, our sprockets provide the stability and precision required for synchronized power transmission.
Detailed Parameters
| Hardness Process | Induction Hardened (HRC 45-55) | Bore Tolerance | H7 Precision Fit |
|---|---|---|---|
| Surface Roughness | RA 1.6 Value | Keyway Standard | DIN 6885 / BS4235 |
| Keyway Position | Located on Tooth Center Line | Fixing Method | Two Grub Screw Holes |
| Pitch Range A | 06B (9.525mm) / 08B (12.70mm) | Pitch Range B | 10B (15.875mm) / 12B (19.05mm) |
| Pitch Range C | 16B (25.4mm) | Pitch Range D | 20B (31.75mm) |
Key Advantages
Superior Wear Resistance
Induction hardening to HRC 45-55 significantly extends the lifespan of teeth under heavy loads.
Rapid Installation
Finished bore H7 tolerance allows for immediate mounting without secondary machining.
Precision Alignment
Keyways aligned strictly to tooth center lines ensure optimal chain engagement and stability.
Standardized Fit
Full compliance with DIN 6885 and BS4235 standards for global industrial compatibility.
Smooth Operation
Low roughness value of RA 1.6 minimizes friction and reduces operational noise.
Secure Locking
Dual grub screw holes provide redundant security to prevent axial movement.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of various pitch sizes (06B to 20B) for fast fulfillment.
Quality Assurance
Rigorous HRC hardness testing and H7 bore inspection on every batch.
Lead Time Mgmt
Optimized production cycles to ensure rapid delivery of finished bore components.
Customization Hub
Flexible options for specialized keyway and bore requirements.
Logistics Sync
Global shipping standards for heavy gear and transmission components.
Technical Support
Expert guidance on selecting the correct sprocket pitch for your application.
Investment Return Comparison
| Performance Metric | Standard Sprockets | Finished Bore Hardened |
|---|---|---|
| Service Life | Standard | 3x Longer (Induction Hardened) |
| Install Time | High (Requires Machining) | Instant (Ready-to-Mount) |
| Wear Rate | Moderate | Ultra-Low (HRC 45-55) |
| Precision | General | High (H7 Tolerance) |
| Maintenance | Frequent Adjustment | Minimal / Long-term Stability |
Frequently Asked Questions
Induction hardening increases the surface hardness to HRC 45-55, which drastically reduces wear on the teeth and extends the operational life of the sprocket in high-friction environments.
H7 is a precision tolerance grade that ensures a snug, accurate fit on your shaft, eliminating the need for further machining and preventing vibration during high-speed operation.
Yes, they are fully compatible. The keyways follow DIN 6885/BS4235 standards and the pitches (06B to 20B) are designed for universal roller chain standards.
They feature a precision keyway for primary torque transmission and two grub screw holes for additional axial locking and security.
The choice depends on your load and speed requirements. We offer sizes from 06B (9.525mm) for light loads up to 20B (31.75mm) for heavy-duty industrial applications.
An RA 1.6 roughness value indicates a high-quality surface finish, which reduces friction, minimizes heat buildup, and prevents premature wear of the mating shaft.
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