• 

  RfN 4051

  This light duty external locking device is the first in the Shrink Disc^® range and is useful for low to medium torque requirements.

  Product details and sizes
• 

  RfN 4051-SR

  As a split version, the SR series is able to offer greater mounting versatility on symmetrical hub designs or can also be used as Half Shrink Discs^® for lower torque applications.

  Product details and sizes
• 

  RfN 4061

  This new design of Shrink Disc^® is made from high alloy forged rings and is practically indestructible. Replacing the smaller 4071 design, these units are available from 14mm to 195mm bore!

  Product details and sizes
• 

  RfN 4071

  The traditional three piece medium duty Shrink Disc^® is practical for most applications. Available in sizes from 200mm and larger.

  Product details and sizes
• 

  RfN 4071-SR

  Split design medium duty version can also be used as Half Shrink Discs^®.

  Product details and sizes
• 

  RfN 4073

  Ultra light Shrink Disc^® for very low torques and compact installations due to small profile.

  Product details and sizes
• 

  RfN 4091

  Heavy Duty Shrink Disc^® for extreme torque or bending applications.

  Product details and sizes
• 

  RfN 4091-SR

  Split design heavy duty version can also be used as Half Shrink Discs^®.

  Product details and sizes
• 

  RfN 4181

  Two piece unit with grade 12.9 fasteners for higher torque requirements.

  Product details and sizes