FLENDER N-BIPEX BWN - Milling the Finished Bore; Table 5-1 Recommended Assigned Fits for Bores with Parallel Key Connection

Assembly
5.1 Preparatory work
26 Edition 09/2022 M3401-02en
5.1.1 Milling the finished bore5.1 Preparatory work
The diameter of the finished bore depends on the shaft used.
Recommended assigned fits
In the following table you can find the recommended assigned fits for bores with a parallel
key connection. The assigned fit m6 / H7 is especially suitable for a host of applications.
Description Push fit Press fit Interference fit
Not suitable for reversing operation Suitable for reversing operation
Shaft tolerance j6 h6 h6 k6 m6 n6 h6
Bore tolerance H7 J7 K7 H7 H7 H7 M7
Table5-1: Recommended assigned fits for bores with parallel key connection
Bore diameter
WARNING
Danger due to bursting of the coupling
If you exceed the maximum diameter of the finished bore, then this can cause the coupling
to burst in operation. There is a risk of fatal injury from flying fragments. If a coupling bursts
in an area at risk of explosion, then this can result in an explosion.
• Adhere to the maximum diameters specified.
The maximum diameters are listed in Section Speeds, geometry data and weights
(Page55)
Procedure
1. Remove the cam ring (50).
2. Remove the preservation and clean the coupling part 1/2 (1 or 2) to be machined.
3. Clamp the coupling to the areas marked with in the diagram below.
4. Machine the finished bore in accordance with the diagram below.