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Precision Machined Carbon Steel Adapter Flanges & Bearing Housings

Engineered for heavy machinery, hydraulic drives, and motor assemblies, our precision-machined steel adapter flanges feature stepped internal bores, custom O-ring sealing grooves, and precise bolt circles. Manufactured in A105 carbon steel or C45 forged steel, we offer full CNC tolerances, anti-rust oiling, and OEM CAD customization.
Product Info

Technical Specifications & OEM Capabilities

Engineering AspectCapability & Standard Specifications
Material OptionsCarbon Steel (A105, C45, #45), Alloy Steel (42CrMo), Stainless Steel (304/316)
Manufacturing ProcessPrecision CNC Turning, Milling, Counterboring, Precision Threading
Dimensional ToleranceBore Concentricity within 0.015 mm, Facing Flatness to 0.02 mm
Sealing FeaturesPrecision Machined O-Ring Grooves, Recessed Spigot & Step Surfaces
Surface ProtectionLight Anti-Rust Oiling, Black Oxide, Zinc Plating, or Phosphating
Quality InspectionCMM Dimensional Verification, Thread Gauge Checking, Surface Roughness Test
Customization100 Percent Manufactured per 2D/3D Engineering CAD Drawings

Key Engineering Features

  • High-Precision CNC Machined Tolerances: Tight concentricity and axial alignment ensure smooth coupling between motor shafts, bearing housings, and hydraulic pumps.

  • Integrated Sealing & Alignment Recesses: Precision-cut internal steps and O-ring channels accommodate high-pressure fluid seals and rigid mechanical positioning.

  • Forged Steel Structural Integrity: Forged C45 / A105 steel base material eliminates internal voids, providing high torque resistance and long fatigue life.

  • EU Tariff Advantage: Bestec benefits from an approved individual lower anti-dumping duty rate in the EU, drastically reducing landed costs for European machinery OEMs.

Primary OEM & Industrial Applications

  • Hydraulic & Power Transmission: Motor mounting adapter flanges, hydraulic pump interface plates, and gear reducer housings.

  • Industrial Machinery: Precision spindle bearing housings, rotating shaft collar retainers, and heavy equipment drives.

  • Pump & Compressor Assemblies: Custom mechanical seal gland flanges and intake/outflow adapter plates.

  • Automotive & Powertrain: Heavy vehicle flywheel adapter plates and axle bearing retainer covers.


Bestec Industrial Co., Ltd.
Address: Zhukai Dasha, 286 Hezuo Lu, Shijiazhuang, China

Tel: +86-311-87283920

E-mail: sales@bestec.cn

Website: www.bestec.cn

Whatsapp:
DUNS® Number: 529658632