spring pins Cylindrical press-in, threadless

Gen-2 Elastic Locating Pin (Short Press-in Type)

InstallationCylindrical press-in, threadlessSurface treatmentOiled for rust protection

Product description

Compiled from the existing technical description of this product on this site

The Gen-2 elastic locating pin is a short press-in structure composed of four parts: steel sleeve, pin, SUS304 spring and rear plug. It is ready to use by pressing directly into the mounting hole — no tapped hole or tapping process required — making it ideal for high-volume automated press-fit lines. The pin tip has a 20°±2° lead angle for automatic centering and reduced scratching during press-in; the spring provides a continuous 10±3N compression force so the pin conforms evenly to the hole wall and compensates machining tolerances of hole position. The pin is made of SUJ2 (GCr15) bearing steel at 50~54HRC, balancing wear resistance and spring life; the sleeve is 42CrMo quenched to 39~44HRC, providing stable guidance for the internal elastic system. Overall height is only 12.25mm, suited to compact small-bearing locating and zero-clearance assembly.

Technical Features
Four-part structure (steel sleeve + pin + SUS304 spring + rear plug): press in to install, no tapping needed20°±2° lead angle on pin tip: automatic centering during press-in, lower scratch rateSpring compression force 10±3N: constant rebound against the hole wall compensates hole-position tolerancePin in SUJ2 (GCr15) 50~54HRC: wear and fatigue resistant, suited to frequent extension/retraction cyclesPin protrusion after compression <1.1mm, fitting compact structural designsSuited to automated press-fit lines with stable, consistent cycle times
Applications
Outer-ring location of small bearings in NEV e-drive systemsZero-clearance assembly locating in automation equipmentInternal limiting in small gearboxes and actuatorsRapid location of internal structures in 3C products and instruments

Specifications

Parameters on this page are subject to factory inspection and the applicable standards; items not listed follow the customer's drawing or order agreement, with no default commitment.

InstallationCylindrical press-in, threadless
Surface treatmentOiled for rust protection
Overall length12.25±0.25 mm
Sleeve outer diameterØ3±0.05 mm
Pin diameterØ2.65±0.05 mm
Pin lead angle20°±2°
Spring compression force10±3 N
Pin protrusion after compression<1.1 mm
Sleeve material42CrMo, quenched 39~44HRC
Pin materialSUJ2(GCr15),50~54HRC
Rear plug / spring45#(250~320HV) / SUS304

Spec lookup

Look up directly among the 4 models of this series by your operating conditions — pure front-end filtering, no redirects, no URL changes.

Filtering results are based on the specification fields published on each model page and serve as a preliminary screen only; final selection must be confirmed against actual load, sheet thickness and assembly process.

Drawings & customization

No public catalog for this series yet; drawing-based requirements are handled per project

2D

Made to drawing / sample replication

Send a 2D drawing or a physical sample for evaluation; after confirmation we proceed with CAD output, prototyping, first-article approval and then volume production. Drawing and project information are treated as confidential.

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Manufacturing process

Typical process route for this product category; actual operations follow the drawing and order requirements

  • Coil formingStrip material coiled into the spring pin
  • Heat treatmentElasticity and hardness control
  • Surface treatmentBlack oxide / zinc plated
  • Elasticity verificationInsertion and extraction force testing

Capacity & delivery

Based on the company's published capacity and certification information; no unverified claims

6.5100M pcs/monthCombined monthly capacity of the Shenzhen and Xiangyang (Hubei) dual bases
1-day prototypingFast prototyping channel after drawing or sample confirmation
26patentsPatents for fastening structures and assembly processes
3system certificationsIATF 16949 / ISO 9001 / ISO 14001

Inquiry and technical support

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