Metal Face Seals - Selection and Material Specification

Part Number Format

Part Number Format

Selection and Material Specification

Ensuring the correct material composition is paramount. Pioneer Weston can work with the customer to analyse application requirements and recommend the most suitable materials.

The main factors in ensuring the correct selection are:
     Size, temperature, speed, pressure, media

Metal Face Seals Reference

Polymer FamilyCompound ReferenceColourHardness (IRHD)Temperature RangeSelect for..Material Designator
Nitrile Rubber (NBR) N-60-214 Black 60 -35 to +110oC

General Purpose

N-60-148 Black 60 -60 to +110oC

Low temperature, with a degree of resistance to lubricants

Fluorocarbon (FKM, A-type) V-60-190 Black 60 -20 to +200oC

High temperatures, good lubricant resistance

Fluorocarbon (FKM, GLT-type) V-60-181 Black 60 -40 to +200oC LTF
Silicone (VMQ) S-60-184 Black 60 -55 to +230oC

High and very low temperatures

Hydrogenated nitrile (HNBR) H-60-123 Black 60 -40 to +180oC

Abrasion resistance; high temperatures


Metal Ring DesignatorMetal TypeDescription
F  Forged roller bearing steel&nbsp
  • General Purpose
  • Hardness >58 HRc
  • Circumferential speed ≤2.0m/s
  • Pressure ≤1.5 bar
C Cast iron
  • Enhanced corrosion and abrasion resistance
  • Hardness 65-72 HRc
  • Circumferential speed ≤3.0 m/s
  • Pressure ≤2.5 bar
X Cast alloy
  • Superior corrosion and abrasion resistance
  • Hardness 68-72 HRc
  • Circumferential speed ≤4.0 m/s
  • Pressure ≤2.5 bar