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Home > Industrial Equipment & Components > Industrial Customized Service > Machining Service > CNC Aluminum Sleeve Bushing Black Anodized Cylinder Tube Spacer

CNC Aluminum Sleeve Bushing Black Anodized Cylinder Tube Spacer

CNC Aluminum Sleeve Bushing Black Anodized Cylinder Tube Spacer photo-1

CNC Aluminum Sleeve Bushing Black Anodized Cylinder Tube Spacer photo-2

US$ 0.1 - 3.5 MOQ: 1 Piece

Key Specifications

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Material:

Aluminum

Application:

Fastener, Auto and Motorcycle Accessory, Machinery Accessory, Other

Surface Treatment:

Anodizing

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Dongguan Bomei Precision Machining Co., Ltd

Payment & Shipping

Payment Methods:

Port of Shipment:

Shenzhen

Delivery Detail:

7 days

Product Details
Company Profile
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Material Aluminum

Application Fastener, Auto and Motorcycle Accessory, Machinery Accessory, Other

Surface Treatment Anodizing

Standard GB, EN, API650, China GB Code, JIS Code, TEMA, ASME

Production Type Mass Production

Machining Method CNC Machining

Precision-machined aluminum sleeve bushings and cylinder tube spacers with a durable black anodized finish—designed for wear resistance, corrosion protection, and precise dimensional control in hydraulic/pneumatic systems, industrial machinery, and automotive applications.

Parameter	Key Details
Material	6061-T6/6063-T6 aluminum alloy (excellent machinability, high strength-to-weight ratio, good thermal conductivity; 6061-T6 for heavy-load bushings, 6063-T6 for lightweight spacers; ideal for cylinder tube gap adjustment and shaft alignment)
Processing	CNC precision turning (single/multi-spindle for mass production), boring (for tight inner bore fit), chamfering (to prevent seal damage), deburring; black anodizing (Type II for corrosion resistance, Type III hard anodize optional for wear resistance); 100% CMM inspection; inner/outer diameter concentricity testing
Tolerance & Precision	Inner diameter tolerance H7 (ISO standard for shaft fit); outer diameter tolerance h6; wall thickness tolerance ±0.02mm; length tolerance ±0.03mm; concentricity ≤0.008mm (avoids shaft wobbling); surface roughness Ra 0.8–1.6μm (reduces friction with mating parts)
Surface Finish	Black anodized coating (thickness 8–15μm, scratch-resistant, UV-stable)
Compatibility	Fits hydraulic/pneumatic cylinder tubes, industrial shaft assemblies, automotive suspension systems, and machinery mounting kits; compatible with steel shafts, aluminum cylinder tubes, rubber seals (NBR, EPDM); supports press-fit, shrink-fit, and bolted installation

Application Scenarios

Hydraulic/Pneumatic Cylinders: Black anodized aluminum sleeve bushings as piston guides—low friction reduces seal wear, corrosion resistance withstands hydraulic fluid exposure, ensuring smooth cylinder operation.
Industrial Machinery Shafts: Spacers for gearbox and motor shaft assemblies—precise dimensional control maintains component alignment, black anodize resists factory dust and oil corrosion.
Automotive Suspension Systems: Aluminum sleeve bushings for control arm shafts—lightweight design reduces unsprung weight, black anodize protects against road salt and moisture.
Electronics Enclosures: Spacers for PCB mounting—non-conductive anodized surface prevents electrical short circuits, precise thickness ensures component spacing accuracy.
Construction Equipment: Heavy-duty sleeve bushings for excavator hydraulic arms—high strength handles heavy loads, wear-resistant finish extends service life in harsh construction environments.