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GN 418.2
Cam point screws
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.
- Strength values of screwsÂ
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
 GN 418.2
| 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 |
 |
||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Code | Actions | ||||||||||||||||
| 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 | 2 |
|
| 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 | 2 |
|
| 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 | 2 |
|
| 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 |
|
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