Special Contact Points, Form, Size and Material Type
Carbide balls – Standard on all 240 Series gage heads. Special sizes are available
Ruby, Ceramic, Chrome, Delrin and Industrial Diamond balls – Special ball materials and sizes are available depending on your unique part application needs.
Aluminum and other non-ferrous metals measuring
A sliding friction between carbide and aluminum or other non-ferrous metals can cause built up local heating at the contact points when measuring. This can result in aluminum sticking to the contact points.
Ruby, ceramic or chrome contacts and Dyer’s push button handle are solutions to this special application.
Chisel Contacts – Special wedge contacts to measure the minor diameter of threads, gears, splines and other special internal profiles. These contacts are designed to span two or more teeth. Contact Dyer with your requirements.
Soft Surface Measuring Soft part surface materials are scratch sensitive and the measuring pressure of the gage can cause deforming of the bore’s surface.This gage application can be solved with large radius contacts of Chrome or Delrin. Dyer’s push button handle is used to reduce contact point pressure when moving the gage in the bore.
Special Chamfer Options 240 Series Measuring Heads
Unique Standard Insertion Chamfer The insertion chamfer of Dyer’s measuring sleeve allows for easy entering of the gage into the bore with no tilting. The height of the chamfer depends on the diameter of the sleeve.
Unique Standard Insertion Chamfer The insertion chamfer of Dyer’s measuring sleeve allows for easy entering of the gage into the bore with no tilting. The height of the chamfer depends on the diameter of the sleeve.
Special 2nd Insertion Chamfer
When measuring interrupted (same size) multiple bores on one line the return exiting of the measuring head can be difficult. To solve this problem we supply a measuring head with a second top chamfer. (See Dwg. 1)
Special Insertion Chamfer for Automatic Gage Measurement
A floating holder that permits radial movement is used to hold the gage. This measuring head is offered with a special chamfer. (See Dwg. 2)
Special No Chamfer Measuring Head
When measuring very short or thin bores, an insertion chamfer can result in bad centering. In these cases we supply a gage with little or no chamfer with a depth stop. Contact Dyer with your application requirements
Mushroom Contacts
Large radius contacts are used for Special Accessories. A radius that matches the bore size is also available. Contact Dyer.
