Cam Lobe: Base Circle Diameter 30-200 mm, Lobe Width 10-100 mm

Component Specifications

Definition

A cam lobe is a precisely engineered component of a cam mechanism, featuring an eccentric profile that, when rotated, imparts controlled motion to a follower. It is designed to transform continuous rotary input into specific, predetermined linear or oscillating output patterns, enabling precise timing and movement sequences in mechanical systems.

Working Principle

The cam lobe operates on the principle of eccentric rotation. As the cam rotates, the varying radius of the lobe profile pushes against a follower (roller, flat face, or knife-edge), causing it to move in a predetermined path. This converts the cam's rotary motion into controlled linear or oscillating motion of the follower, with the lobe's shape dictating the displacement, velocity, and acceleration characteristics of the output.

Materials

Typically manufactured from hardened alloy steels (e.g., AISI 4140, 8620), stainless steels, or ductile iron. Surface treatments like carburizing, nitriding, or induction hardening are applied to enhance wear resistance and fatigue strength.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Lobe Lift	5-50 mm
Lobe Width	10-100 mm
Surface Finish	Ra 0.4-1.6 μm
Surface Hardness	55-65 HRC
Base Circle Diameter	30-200 mm

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 1101, DIN 24971

Parent Products

This component is used in the following industrial products

Cam Mechanism

A mechanical component that converts rotational motion into linear motion or vice versa within a locking system.

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Engineering Analysis

Risks & Mitigation

Wear and surface degradation over time
Fatigue failure due to cyclic loading
Misalignment causing uneven follower contact
Inadequate lubrication leading to seizing

FMEA Triads

Trigger: Insufficient surface hardness or improper heat treatment
Failure: Accelerated wear and pitting on the lobe surface
Mitigation: Specify appropriate material grades and hardening processes; implement regular inspection and lubrication schedules.

Trigger: Dynamic overload or shock loads
Failure: Lobe fracture or plastic deformation
Mitigation: Design with adequate safety factors; use fatigue-resistant materials; install overload protection devices in the system.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101: Profile tolerance of 0.05 mm, runout tolerance of 0.02 mm

Test Method

Coordinate Measuring Machine (CMM) inspection, surface roughness testing per ISO 4287, hardness testing per ISO 6508

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

Manufacturers of Cam Lobe

Manufacturer profiles associated with Cam Lobe.

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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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Frequently Asked Questions

What is the primary function of a cam lobe?

The primary function is to convert the continuous rotary motion of a camshaft into precise, timed linear or oscillating motion of a follower, enabling controlled mechanical sequences in machines.

How does cam lobe profile affect performance?

The lobe profile (shape) determines the displacement, velocity, and acceleration of the follower. Optimized profiles minimize vibration, wear, and dynamic loads, improving efficiency and lifespan.

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.

Cam Lobe