GN 418.2 Cam point screws


  • RoHS

Description

Specification

Type

Type R: Clamping by clockwise rotation
(d2 = right-hand thread)
Steel
  • case hardened HRC 56 ±1
  • Tensile strength class 8.8
  • zinc plated, blue passivated

Information

Cam point screws GN 418.2 are sturdy and compact elements, requiring a minimum of installation space and offering ultimate convenience and ease in handling.
The clamping forces F given in the table refer to the maximum permitted tightening torque and the specified screw-in depth t.

Technical information

Function

The head of the cam point screw has two cams: a radial clamping cam (with additional 30° taper) and an axial draw-down cam. The cam ensures that the clamping force is the same in any angular position. The cam is also self-locking.
Force components act on the clamping point which generate a draw-down effect and which, in addition to the friction, cause the workpiece to be pressed against a fixed stop. An additional draw-down effect is created by the thread and the 30° taper.
To ensure safe and secure clamping in every application, a right-hand version (with right-hand thread) and a left-hand version (with left-hand thread) is available.

Assembly instructions

  • Position the thread bore(s) as specified
  • Screw the cam point screw in to the desired height and place it with its flat side facing the workpiece (note the minimum screw-in depth t)
  • For clamping effect above the head taper, the minimum clamping height should be h2
  • A turn of approx. 135° is required for clamping

Application examples

Cam point screws  GN 418.2
GN 418.2
Filter
Description d1 Nominal dimension d1 d2 l h1 h2 r1 r2 s1 s2 A/F x ±0.2 z ±0.2 Max. tightening torque
in Nm
Max. clamping
force F in kN
Weight
GN 418.2-9-M4-8-R 9 9.2 M 4 8 3 3 4 4.6 1 0.6 2.5 3.5 4.2 1.5 0.09 2
GN 418.2-12-M5-10-R 12 11.7 M 5 10 4 3.5 5 5.7 1.16 0.7 3 4.2 5.2 2 0.1 3
GN 418.2-14-M6-12-R 14 14.2 M 6 12 5 4.5 6.1 7.1 1.44 1 4 5.4 6.4 5 0.3 4
GN 418.2-18-M8-16-R 18 18 M 8 16 6 5.5 7.7 9 1.84 1.2 5 6.6 8 22 2.7 8
GN 418.2-22-M10-20-R 22 22.2 M 10 20 7 6.5 9.4 11.1 2.16 1.7 6 8.3 9.8 35 4 12
GN 418.2-26-M12-24-R 26 25.8 M 12 24 9 8 11.6 13.6 2.53 1.9 8 10.1 12 45 5.4 35