Available is a wide range of locknuts to suit the majority of collet systems.

ER (DIN6499) is available in ER Standard, ER Mini, ER High Speed, ER Coolant and ER Bearing types.
DA (Double Angle)  is available in slimline (04) and standard (08) configurations.
TG (tremendous Grip) available in a range of sizes.
OZ DIN6388 range
 
Please contact our technical department for advice on types of locknut for your application or spares replacement.

Locknuts

  • ER Standard Locknuts

    Available as the 'round nut configuration in sizes ER16, 20, 25, 32, 40, 50.
    Hexagon type is available in sizes ER11, 16, 20

  • ER Mini (MER) Series Locknuts

    A locknut with a smaller outside diameter than the ER standard.
    Available in MER 08, 11, 16, 20, and 25 sizes.

  • ER High Speed Locknuts

    Ground and balanced for high speed use up to g2.5 @ 25,000 rpm.
    Available in ER16, 25, 32, 40
    Ground and balanced for high speed use up to g2.5 @ 40,000 rpm.
    Available in ER08, 11, 16, 20
     

  • ER Locknuts for Sealing / Flush Discs

    Designed to take coolant sealing or flush disc types.
    Available in ER11,16, 20 25, 32, 40
    Available in MINI ER11,16, 20 25

  • ER Friction Ball Bearing Type

    Designed to obtain the maximum clamping force in both standard and coolant sealing or flush disc types.
    Friction Ball bearing available in ER16, 20, 25, 32, 40, 50
    Friction Ball bearing with coolant seal available in ER16, 20, 25, 32, 40

  • ER Internal Type Locknuts

    Used where access in front of the collet is restricted.
    Available in both standard and coolant sealing or flush disc types.
    Standard available in ER11, 16, 20, 25, 32, 40
    Coolant seal version available in ER11, 16, 20, 25, 32, 40

  • DA (Double Angle) Mini Series 04

    Slimline locknuts available in
    Hexagon Front - 184, 104, 204, 304, 000 Mini series

  • DA (Double Angle) Series 08

    Standard locknuts available in
    Hexagon 208 and 108 series
    Round Nut 188 series

  • TG - (Tremendous Grip) Locknuts

    Ball bearing type locknuts available in TG50, 75, 100 and 150 series.

  • DIN 6388 OZ Locknuts

    Available in 16, 20, 25 and 32 sizes.