Shaft/Core: Torque Capacity 500-5000 Nm, Diameter 50-200 mm

Component Specifications

Definition

The shaft/core is the primary structural and functional component in skimming drum/belt systems, designed to transmit rotational power from the drive mechanism to the drum or belt assembly. It provides precise alignment, maintains concentricity under operational loads, and ensures stable rotation for material processing applications. Engineered with specific bearing surfaces, keyways, and mounting features to interface with other mechanical elements.

Working Principle

Converts input torque from motors or drives into rotational motion of the drum/belt assembly through rigid mechanical coupling. Maintains rotational stability via precisely machined bearing surfaces and balanced mass distribution to minimize vibration during high-speed operation.

Materials

Typically manufactured from alloy steels (AISI 4140, 4340) or stainless steels (304, 316) with heat treatment (quenching and tempering) to achieve hardness of 28-32 HRC. Surface treatments include chrome plating or nitriding for wear resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	500-3000 mm
Max RPM	800-1500
Diameter	50-200 mm
Tolerance	h6/h7
Straightness	0.05 mm/m
Surface Finish	Ra 0.8-1.6 μm
Torque Capacity	500-5000 Nm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 286-2, DIN 748

Parent Products

This component is used in the following industrial products

Skimming Drum/Belt

The primary contact component of an oil skimmer that physically removes floating oils and greases from liquid surfaces.

View Product Details

Engineering Analysis

Risks & Mitigation

Bearing surface wear
Shaft deflection under load
Fatigue failure at stress concentrations
Corrosion in aggressive environments

FMEA Triads

Trigger: Improper bearing alignment during installation
Failure: Accelerated bearing wear leading to vibration and reduced rotational accuracy
Mitigation: Implement precision alignment procedures using laser alignment tools and verify runout during installation

Trigger: Insufficient material strength for applied torque loads
Failure: Torsional failure or permanent deformation of shaft
Mitigation: Conduct torque capacity calculations with safety factors and select appropriate alloy steel grades with proper heat treatment

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286-2

Test Method

Dimensional verification with CMM, hardness testing per ISO 6508, NDT inspection per ISO 17635

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Shaft/Core

Manufacturer profiles associated with Shaft/Core.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

Frequently Asked Questions

What are the critical tolerances for skimming drum shafts?

Diameter tolerances of h6/h7 (ISO 286-2) and straightness within 0.05 mm/m are critical for proper bearing fitment and vibration-free operation.

How are shafts protected from corrosion in wet processing environments?

Stainless steel construction (304/316) or protective coatings like chrome plating provide corrosion resistance in humid or chemical exposure conditions.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Shaft/Core