The Grooved Pins are parallel pins with three equi-spaced longitudinal grooves. They are rolled or pressed into the cylindrical body to deform the pin stock outward within controlled limits. When this pin is forced into a drilled hole of proper diameter, a locking fit is obtained. Only a straight drilling hole is required and no reaming is needed. A few of them are illustrated above.
Clearances of parts(groove pin in inches)
Grooved taper pins (steel dowel)
Connecting rod bearings
Main thrust bearings-width
other oil rings, side
other oil rings, gap
Piston pin bearing
Vertical drive gears Backlash
How groove pins work?
When pressed into a hole the size of the Groov-Pin’s original diameter, the hole compresses the expanded pin and creates a forceful hold. This unique locking action is created without permanent deformation of either the pin or base material.
Conversion of groove pins ra, rz
Tolerance of Groove Pins
Advantages of grooved pins:
Withstand severe shock/vibration, even with axial displacement,Solid construction stronger than spring pins,Different groove types for a wide range of applications,Require only a straight drilled or molded hole,Reduce assembly steps,Driven with hammer, air cylinder or hydraulic press,Can be hopper-fed for automatic installation,Easy installation and quick assembly,Removable and reusable.
Manufacturers & suppliers of grooved pins
Grooved pins are manufactured from stainless steel material etc. our manufacturing range for grooved pins is from 0.2 to 16 mm in diameter and 1 to 200 mm in length.cylindrical (dowel) or parallel pins are used either to retain parts in a fixed position or to preserve alignment.
Internal threaded cylindrical (dowel) pin are for easy extraction, from blind holes. hardened pins are manufactured from case hardened alloy steel or as per buyers requirement. air vent may be provided.
ISO for cylindrical (grooved pins)
Grooved pins and shaft rollers
Radial bearings – Tolerances
radial internal clearance
Rolling bearings – Chamfer dimensions
Tool steels and bearing steels; Micrographic method for bearings
assessing the distribution of carbides using reference photomicrographs
Aluminium alloys for solid bearings
Plain bearings; Requirements on backings for needle
Plain bearings; Ring type thrust washers made from strip;
Dimensions and tolerances
Taper Pins are preferred for parts which have to be taken apart frequently and when driving out the Cylindrical Pins, would tend to wear the holes and also to very accurate constructed tools and gauges which have to be kept in absolute alignment.
External & Internal Threaded Taper Pins are used for extraction of the pins more conveniently.