Mounting Shaft/Bearings: Shaft Diameter 50-150 mm

Component Specifications

Definition

A precision-engineered rotating shaft and bearing system designed to support radial and axial loads while enabling smooth rotation of compaction drums in industrial machinery. This assembly provides structural integrity, precise alignment, and controlled motion transfer between the drum and drive mechanism.

Working Principle

The shaft transmits torque from the drive system to the compaction drum while bearings reduce friction through rolling elements (balls or rollers) between inner and outer races, allowing smooth rotation under heavy compressive loads.

Materials

Shaft: AISI 4140 alloy steel (hardened to 45-50 HRC); Bearings: Chrome steel (GCr15) with polyamide or brass cages; Seals: Nitrile rubber or fluorocarbon

Technical Parameters

Parameter	Typical range	Notes & selection driver
Mounting	Adapter sleeve or direct fit
Lubrication	Grease (NLGI 2) or oil bath
Bearing Type	Spherical roller bearing or tapered roller bearing
Speed Rating	Up to 1500 rpm
Load Capacity	Dynamic: 200-800 kN, Static: 300-1200 kN
Shaft Diameter	50-150 mm
Operating Temperature	-20°C to +120°C

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 281, ISO 1132, DIN 5412, DIN 620

Parent Products

This component is used in the following industrial products

Compaction Drum

The cylindrical component of a road roller that directly contacts and compacts the ground surface.

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Engineering Analysis

Risks & Mitigation

Bearing seizure due to inadequate lubrication
Shaft fatigue failure from cyclic loading
Misalignment causing premature wear
Contamination from dust/debris ingress

FMEA Triads

Trigger: Insufficient lubrication
Failure: Bearing overheating and seizure
Mitigation: Implement automated lubrication system with monitoring sensors

Trigger: Shaft misalignment
Failure: Uneven load distribution and premature bearing failure
Mitigation: Use laser alignment tools during installation and regular checks

Trigger: Contaminant ingress
Failure: Abrasive wear and reduced bearing life
Mitigation: Install multi-labyrinth seals and positive pressure systems

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Shaft: IT6/IT7, Bearing: ABEC 1/P6

Test Method

Vibration analysis, temperature monitoring, ultrasonic testing for bearing condition

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

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Manufacturers of Mounting Shaft/Bearings

Manufacturer profiles associated with Mounting Shaft/Bearings.

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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.

Seal Groove

Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.

Frequently Asked Questions

What lubrication is recommended for compaction drum bearings?

Use high-temperature lithium-based grease (NLGI 2) with EP additives. For continuous operation, automatic lubrication systems are recommended to extend bearing life.

How often should mounting shaft alignment be checked?

Alignment should be verified during installation and after every 500 operating hours or following significant impact loads to prevent premature bearing failure.

Can these bearings handle both radial and axial loads?

Yes, spherical roller bearings are specifically designed to accommodate combined radial and axial loads, making them ideal for compaction applications.

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.

Mounting Shaft/Bearings