Cycling / Bicycle
🔩 Bicycle Suspension, Frame Hardware & Linkage
Large-diameter coil springs with variable rate winding, precision hollow axles with stepped bores, complex forged/machined linkage plates, small precision spacer sleeves
What is Bicycle Suspension, Frame Hardware & Linkage?
🔩 Bicycle Suspension, Frame Hardware & Linkage represents a complete system of precision titanium components engineered for Cycling / Bicycle applications. Large-diameter coil springs with variable rate winding, precision hollow axles with stepped bores, complex forged/machined linkage plates, small precision spacer sleeves The system integrates 11 distinct component types manufactured through 3 specialized processes.
Key manufacturing processes for this system include CNC turning Swiss-type for suspension hardware geometry, Thread rolling DIN 13-1 6g with Class 6g gauge, Vibratory deburring with Class 6g gauge, Go/No-Go ring gauging with Class 6g gauge, CNC turning Swiss-type for frame hardware geometry, each selected and qualified to meet component-specific requirements.
Engineering & Design Principles
Material: Grade 5 (Ti-6Al-4V) for axles, bolts, hangers, and bearing retainers. Beta-C titanium for rear shock coils — shear modulus ~42 GPa enables 40-50% weight saving vs steel with superior fatigue life. Gra
Form: Bar stock for pivot axles and linkage hardware. Beta-C wire for shock coil winding — cold coiled + vacuum aged. SLM 3D printing of flex-stay plates and hangers using Grade 23 ELI powder under argon (O
Standards & Material Specifications
Standards: ASTM B348 Grade 5 / Beta-C Ti wire, rolled threads, 100% dimensional + crack inspection
Engineering Solution Blueprint
Bicycle Drivetrain & Drivetrain Hardware
Cycling · Consumer
1 Part Feature Analysis
Precision-machined thin-profile toothed rings (cogs/chainrings), small-diameter pins/shafts, threaded fasteners with rolled threads, hollow spindles with bearing interfaces
- ⚠️ Rotational inertia reduction
- ⚠️ Wear resistance against chain rollers
- ⚠️ Sweat/rainwater corrosion
- ⚠️ Thread galling in aluminum frames
- ⚠️ Fatigue under sprint torque 1500W+
2 Material Selection Rationale
Grade 5 Ti-6Al-4V — General alpha-beta alloy, high strength
Grade 5 (Ti-6Al-4V) provides ideal wear resistance, fatigue strength, and 40% weight saving vs steel for drivetrain components. Grade 9 for fasteners requiring cold heading.
3 Form Selection Rationale
Round Bar / Rod — for turning, fasteners
CNC machining from plate/bar for cogs and chainrings. Swiss-type turning for pins and spindles. Rolled thread forming for bolts ensures continuous grain flow for fatigue safety.
4 Manufacturing Process & Services
Core Processes:
Toll Processing Services:
Process Pitfalls:
- ⚠️ Chainring tooth profile must match chain roller diameter to +-0.05mm for silent shifting
- ⚠️ BB spindle taper requires +-0.01mm concentricity for bearing preload accuracy
5 Procurement Specifications
ASTM B348 Grade 5 / Grade 9, solution+aged (STA), 100% dimensional + MPI inspected
Manufacturing Process Flow
Professional surface treatment process for for Oil & Gas titanium components. Beta-C wire cold coiling + shot peening + preset for shock springs is pe
Laser drilling of titanium uses pulsed laser energy to create precise holes through percussion or trepanning methods. Hole diameters range from 0.05 m
Selective Laser Melting (SLM/DMLS) builds titanium components layer-by-layer from metal powder using a fiber laser. Internal lattice structures, confo
Components in This System
| Component | Material |
|---|---|
| Titanium Bell Crank Rocker Arm | Grade 5 Ti-6Al-4V |
| Titanium Bottom Bracket Shell | Grade 5 Ti-6Al-4V |
| Titanium Derailleur Hanger | Grade 5 Ti-6Al-4V |
| Titanium Fork Air Chamber Top Cap | Grade 5 Ti-6Al-4V |
| Titanium Frame Flip Chip | Grade 5 Ti-6Al-4V |
| Titanium Linkage Pivot Bolt | Grade 5 Ti-6Al-4V |
| Titanium Main Pivot Axle | Grade 5 Ti-6Al-4V |
| Titanium Pivot Bearing Retainer Circlip | Grade 5 Ti-6Al-4V |
| Titanium Pivot Bearing Spacer Sleeve | Grade 5 Ti-6Al-4V |
| Titanium Rear Shock Coil Spring | Grade 5 Ti-6Al-4V |
| Titanium Rear Shock Mounting Bolt | Grade 5 Ti-6Al-4V |
Frequently Asked Questions
What titanium grades are used in Bicycle Suspension, Frame Hardware & Linkage systems?
What manufacturing processes are used for Bicycle Suspension, Frame Hardware & Linkage?
What quality standards apply to Bicycle Suspension, Frame Hardware & Linkage components?
What industries use Bicycle Suspension, Frame Hardware & Linkage?
Can you provide DFM feedback for Bicycle Suspension, Frame Hardware & Linkage designs?
Engineering Trends
- ▸ Process: CNC gun drilling + centerless grinding of pivot axles
- ▸ Process: Beta-C wire cold coiling + shot peening + preset for shock springs
- ▸ Process: SLM 3D printing of flex-stay plates with argon shielding
Related Manufacturing Capabilities
These specialized processes support Bicycle Suspension, Frame Hardware & Linkage component manufacturing.
One Metal. One Focus. Infinite Precision.
Founded in 2011 in Baoji's Titanium Valley, BOZE Metal is dedicated exclusively to titanium — from raw material to precision engineering. AS9100D, ISO 13485 & ISO 9001 certified with 500+ clients across Aerospace, Medical & Motorsport industries, we deliver end-to-end precision titanium CNC machining with full material traceability from source to component.
Boze Titanium Manufacturing Center is operated by Baoji Boze Metal Products Co., Ltd.
Certifications verified by NADCAP and compliant with ASTM International titanium standards (B265, B348, B381, F136, F2924) and ISO 13485 medical-device QMS.