Collet / Jaw Set: Clamping Range 1-100 mm diameter

Q: What is the difference between collets and jaws in lens fixtures?

Collets are typically single-piece, slotted sleeves that compress uniformly, ideal for cylindrical components. Jaws are segmented components that move independently or together, better for irregular shapes. Both provide precision clamping but differ in mechanism and application flexibility.

Q: How do I select the right collet/jaw set for my optical application?

Consider component diameter range, material compatibility (to prevent scratching), required runout tolerance (<0.01 mm for precision optics), rotational speed, and clamping force. Consult manufacturer specifications for optical-grade certifications.

Q: Can collet/jaw sets be used for both glass and plastic lenses?

Yes, but material selection is critical. Hardened steel jaws work for glass, while non-marring polymer or rubber-coated jaws are recommended for plastic lenses to prevent surface damage. Always verify compatibility with lens coating requirements.

Component Specifications

Definition

A collet/jaw set is a specialized clamping mechanism designed for lens fixtures or chucks in optical manufacturing equipment. It consists of precision-engineered jaws or collets that apply uniform radial pressure to securely grip optical elements (lenses, prisms, mirrors) without causing surface damage or distortion. These components ensure accurate positioning and stability during critical processes like grinding, polishing, coating, and assembly, maintaining micron-level tolerances required for optical quality.

Working Principle

The collet/jaw set operates on a mechanical clamping principle where tapered jaws or collets are compressed radially inward by an external force (typically via a drawbar, hydraulic, or pneumatic system). This creates uniform circumferential pressure that securely holds the optical component without slippage or deformation. The precision-ground surfaces and controlled elasticity of the jaws ensure repeatable centering and minimal runout during high-speed operations.

Materials

High-strength alloy steel (e.g., AISI 4140, 4340) with hardness 45-50 HRC for durability; Carbide-tipped or ceramic-coated variants for wear resistance; Non-marring materials like polyurethane or Delrin for delicate optical surfaces.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Grip Force	50-500 N
Maximum RPM	8000-15000
Clamping Range	1-100 mm diameter
Surface Finish	Ra 0.4 μm or better
Runout Tolerance	<0.005 mm TIR
Temperature Range	-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 10110, ISO 1101, DIN 6388

Parent Products

This component is used in the following industrial products

Lens Fixture/Chuck

A precision holding device designed to secure and position optical lenses during automated measurement processes.

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Engineering Analysis

Risks & Mitigation

Surface scratching or coating damage
Insufficient grip causing slippage
Over-clamping leading to lens distortion
Thermal expansion affecting precision
Wear reducing clamping accuracy over time

FMEA Triads

Trigger: Improper jaw material selection
Failure: Surface damage to optical components
Mitigation: Use non-marring materials; implement material compatibility charts

Trigger: Wear or contamination on clamping surfaces
Failure: Increased runout and positioning errors
Mitigation: Regular inspection and cleaning; scheduled replacement per usage hours

Trigger: Incorrect clamping force application
Failure: Lens distortion or cracking
Mitigation: Implement torque-controlled systems; operator training on force calibration

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.002 mm diameter, <0.005 mm TIR runout

Test Method

ISO 10110-5 for surface defects; DIN 6388 for clamping accuracy; Laser interferometry for runout measurement

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 Collet / Jaw Set

Manufacturer profiles associated with Collet / Jaw Set.

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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 difference between collets and jaws in lens fixtures?