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1. Material: 45# carbon steel
2. Manufacturing Process: Material cutting, CNC rough turning, small-hole drilling, straightening, precision finishing, and final product inspection.
3. Coaxiality and roundness are tightly controlled; after assembly, the fit clearance remains stable, resulting in minimal vibration during rotary operations. The locating step provides axial positioning, ensuring secure and reliable assembly.
4. Surface Treatment: For service conditions with a high risk of corrosion, blackening or passivation can be applied for rust prevention; however, no thick coating should be applied to mating surfaces intended for precision fits.
5. Applications: Typically installed in rotating shafts, couplings, sealing assemblies, and pump‑valve equipment; multi‑step shoulders serve as axial locating stops, while small holes on the inner wall facilitate pin alignment and venting of oil passages. It can both provide radial load support and function as a wear‑resistant bushing, while also restricting axial movement of components and reducing operational vibration. Widely used in pump housings, transmission mechanisms, hydraulic assemblies, industrial tooling fixtures, and other applications.
Product Details
Machining Capabilities
Integrated services covering CNC machining, turning, milling, grinding, drilling, sawing, cutting, leveling, welding, and assembly.
Processed products
Large plates, flanges, shafts, welded frames, bases, hardware components, aluminum parts, and tooling fixtures.
Processable materials
Carbon steel, alloy steel, stainless steel, aluminum, copper, POM, ABS, acrylic…
Surface treatment
Galvanizing/phosphating/chromating, blackening, anodizing, wire drawing, sandblasting, baking varnish, spray painting, electrophoretic coating, nitriding…
Drawing Requirements
PDF/CAD/3D
Samples Available
Yes
Sample Lead Time
7–15 days
Machining accuracy
±0.01 to ±0.05 mm
Roughness
Ra 0.8~3.2
Inspection
Incoming material inspection → First-piece inspection → In-process inspection → Pre-shipment inspection
Packaging
Carton/Pallet/Wooden crate
Certificate
ISO9001:2015
Lead Time
1–6 weeks
Supply model
Supports single-item prototyping, small-batch trial production, and large-scale mass production.
Delivery Service
We offer machining with customer-supplied materials or with materials supplied by us, along with 3D modeling and process optimization.
After-sales service
Shipment includes a dimensional inspection report (if required); rapid response and corrective action for quality issues.
Logistics
We can arrange dedicated vehicle delivery for oversized items and provide reinforced protection with wooden crates.
Application areas
Lithium Extraction Equipment for Salt-Lake Brines
Lithium Battery Equipment for New Energy Applications
LCD Display Vision-Inspection and Burn-In Equipment
Hengan Paper Industry Packaging Machine Series
3D polishing equipment
Specializing in the custom manufacturing and supply of components for automated non-standard equipment.
Keywords:
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No. 74, Zhennan 2nd Road, Xike, Tong'an District, Xiamen, Fujian, China
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