Product Description
CNC Center milling Service
CNC Machining/Turning/Granding Service
Automatic Lathe Service
Our HangZhou Zhong Li Da Machinery Co.;,; Ltd are specialized in precision machining parts,; cnc machining parts,;production cnc machining,;custom cnc machining with customer drawing since 1995.;
Products detail
We have rich experience in manufacturing micro parts for a wide variety of industries.; Like Turning Part,;Shaft,;Machining Part,; CNC Machining Part,; Milling Part,; Hardware Accessories,; Arrow Metal Part,; Special fasteners,; Industrial Control Switch Metal Part for medical,; electronic,; fiberoptic,; microwave area,; etc.;
| Quality Assurance | ISO9001:;2008 Certified etc | ||||||||
| Materials | Aluminum Alloy:;5052 /6061/ 6063 / 2017 / 7075 / ADC12/518 etc.; | ||||||||
| Brass Alloy:;3600 /3602 / 2604 / H59 / H62 / etc.;etc.; | |||||||||
| Stainless Steel Alloy:;303 / 304 / 316 / 412 / etc.; | |||||||||
| Steel Alloy:; C45 | |||||||||
| Carbon Steel 12L14 12L15/ Die Steel / Spring Steel etc.; | |||||||||
| Special material:;Lucite / Nylon / Bakelite / POM / ABS / PP / PC / PE / PEEK / Titanium etc.; |
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| We handle many other type of materials.; Please contact us if your required material is not listed above.; |
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| Surface Treatment | Blacking,;polishing,;sandblasting,;anodize,;chrome plating,;zinc plating,; pickling&passivation,; vibration,;nickel plating,;tinting |
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| Inspection | Mitutotyo three-coordinate measuring machine / Mitutoyo Tool Microscope can measure up to 300mmX x 175mmY x 220mmZ |
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| File Formats | Solid Works,;Pro/Engineer,; AutoCAD(DXF,;DWG);,; PDF,;TIF ,; IGS ,; STP etc.; | ||||||||
Production Flow Chart
Factory Show
Shipping&Payment
FAQ
Q:; How soon can I get reply after send inquiry?
A:; 1.;all inquiries will be replied within 2 hours except sleeping time in China.;
2.;Our call phones standing by any calls at any time
Q:; How soon can I get samples ?
A:; Generally samples can be sent out within 7 working days after product drawing confirmed by both side.;
Q:; What file format can you accept for my products?
A:; 1.;We can accept varies format,; igs,; step,; stp,; jpg,;pdf,; dwg,; dxf and so on.;
2.;If you do not have a prepared CAD file,; we can accept a scan of a hand drawn design.;
Q:; If I don’t have drawing,; how can I get sample ?
A:; If you don’t have any drawing,;you can send us your sample,; we will scan it and make 2D and 3D drawing first,; then make sample for you.;
Q:; What are many common materials that you use in projects?
A:; Aluminum,;Stainless Steel,; Carbon Steel,; Copper,; Plastics,; Titanium and PEEK
Q:; What’s your MOQ(minimum order quantity);
A:; We don’t have MOQ,; you are welcome to send us trial order to test our quality and service.;
Q:; What’s the payment term do you accept?
A:; EXW/FOB HangZhou,; paid by T/T,; Paypal,; Western Union.;
Q:; What kind of machining we excel in?
A:; Included all kind of machining parts.;
Standard Length Splined Shafts
Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
Disc brake mounting interfaces that are splined
There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
Disc brake mounting interfaces that are helical splined
A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.
