Drill bushes flanged A172 - DIN 172
The A172 flanged drill bushes are used to guide drill bits or shaft in mechanisms requiring precise alignment. They can therefore be used to drill with high precision and repeatability. The collar locks the bushe axially.
Specifications
Material : 16CrNi4 - Case-hardened
Standard : DIN 172
Dimensions :
- Press-fit diameter : from 3 to 78mm
- Internal guide diamete : from 0.9 to 63mm
- Length : from 8 to 78mm
Hardness : 60 - 62 Hrc
Treatment : Case hardening and tempering for optimum surface hardness.
Benefits :
- Collar locks the bushe axially.
- Precise guiding and drilling
- High resistance
- Easy and quick postioning
- Larger entry radius
Tolerances :
- External diameter : F7
- Internal diameter : m6 or n6
Conception :
- Grinding
- Honing / Boring
Recommendation for use :
Mounting : The drill bushes are fitted directly in the guide plate at a distance of approximately 0.5 x of the drill of the workpiece. The bore for the drill bush is H7.
To order you need to indicate :
- The corresponding reference based on your need
Example : A172.0700.016
3D Model
Plan
d1 : Internal drill bushes diameter
d2 : External drill bushes diameter
d3 : Collar drill bushes diameter
L1 : Length drill bushes
L2 : Collar length
DH7 : Bore diameter drill bushes plate
