Head Liner Bushings (HL)

Quick-Ship Head Liner Bushings (HL)

Heavy-duty head liner foundation for renewable bushings. Liners pressed into jig plate with integral head resist axial loads while holding replaceable drill bushings. Precise sliding fit protects plate from wear during frequent changes.
Quick-Ship HL bushings combine head retention with renewability. Permanent head installation accepts standard renewable bushings while preventing jig plate damage from heavy axial forces and repeated replacements. Essential for demanding multi-operation production jigs. Head liners enable bushing changes under high loads without fixture rebuilds.

Why choose HL bushings?

Why Head Liner (HL) bushings excel: Integral head resists heavy axial loads while permanent foundation enables unlimited renewable bushing changes for maximum durability and flexibility.
  • Permanent press-fit with head
  • Heavy axial load resistance (head recessed standard)
  • Precise sliding fit for renewables
  • Accepts standard drill bushings
  • Unlimited bushing replacement
  • Multi-operation optimized

Applications

Multi-step drilling with heavy axial forces. Perfect for production jigs needing renewable precision under demanding load conditions.

Technical Specifications

HL bushing specifications:
  • Material: 1144 Stressproof steel, Rc 62-64
  • Common sizes: 3/16" to 4" ID stocked
  • Part numbering: HL-XX-X format
  • OD Tolerance: 1/2" +0.0017/+0.0014; 3/4-1" +0.0018/+0.0015
  • ID Tolerance: 3/16-3/8" +0.0001/+0.0004"; 7/16-5/8" +0.0002/+0.0005"

Installation Methods

Press-fit installation with head options:
  • Hydraulic press into precision drilled hole
  • Head exposed (standard) or counterbored recess
  • Permanent mounting (non-replaceable)

Order Now

Immediate availability on standard HL sizes.
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