Aluminium oxide mounted flap wheel F dia. 20x20 mm shank dia. 6 mm length 60 mm flaps 6x2 flaps A120 for fine grinding and finishing

Technical information

Abrasive: Aluminium oxide A
Dia. external: 20 mm
Dia. shank: 6 mm
Grit size: 120
Length, shank: 60
Max. RPM: 23800 RPM
RPM, optimum: 19100 RPM
Width: 20 mm
Packaging unit: 10 pieces

Description

On mounted flap wheels, the flaps made of coated abrasive are arranged radially around the tool axis in a fan-type structure. Their flexibility means they can adapt perfectly to very fine workpiece contours and are also suitable for very small holes and inner pipe diameters. The abrasive grain is embedded in the sturdy, flexible cloth backing material by means of a resinoid bond.

In ISO 3919, mounted flap wheels are designated as "flap wheels with shaft".

Suitable for fine grinding.

Special features

Highly flexible, enabling optimal adjustment to the contour.
Consistently high stock removal rate over the entire tool life as new, aggressive abrasive is constantly exposed.

Recommendations for use

Reducing the contact pressure and the peripheral speed and adding grinding oil diminishes tool wear and thermal load on the workpiece.
To increase the stock removal rate, it is advisable to use a coarser type of grit instead of increasing the contact pressure. This will prevent unnecessary tool wear and thermal load on the workpiece.
The increase in cutting speed leads to a slightly finer surface quality. Increasing the contact pressure makes the surface slightly coarser. The softer the material that is being worked on, the coarser the surface (when using the same grit size).
For the best results, use at a recommended cutting speed of 15-20 m/s. This provides an ideal compromise between stock removal rate, surface quality, thermal load on the workpiece and tool wear.
Use grinding oil that is suitable for the material in order to significantly increase the tool life and the abrasive performance of the tools.

Safety notes

For safety reasons, the maximum permitted rotational speed indicated must never be exceeded.
The contact pressure must be significantly reduced if the specified optimum rotational speed is exceeded.
Safety can only be guaranteed if the clamping length is at least 10 mm and the specified maximum rotational speed is not exceeded with unsupported shank lengths.
When working with long shank lengths, it is crucial that the tool is in contact with the workpiece (or inserted in the bore or slot to be machined) before the drive system is turned on. As a rule, the tool must remain in contact with the workpiece for as long as the machine is running. Failure to observe this procedure may result in failure (bending) and hence an increased risk of accidents. If continuous contact between the tool and the workpiece is not guaranteed during use, the maximum idling speeds must not be exceeded.

Materials that can be worked: Aluminium; Annealed cast iron; Brass; Cast steel; Copper; Grey/nodular cast iron (GG/GJL, GGG/GJS); Hardened, heat-treated steels over 1.200 N/mm² (< 38 HRC); Stainless steel (INOX); Steel materials with a hardness > 54 HRC; Steels up to 1,200 N/mm² (< 38 HRC)

Applications: Cleaning; Deburring; Leveling; Removing oxide layers; Step-by-step fine grinding; Surface work; Work on weld seams

Drive types: Drive spindle; Flexible shaft drive; Straight grinder

Downloads

Mounted flap wheel – bore polisher

Aluminium oxide mounted flap wheel F dia. 20x20 mm shank dia. 6 mm length 60 mm flaps 6x2 flaps A120 for fine grinding and finishing

BP 2020/6-60 6x2 A 120

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