A roller core comprises a hollow cylindrical aluminum roller body (21) and two step-shaped steel roller shafts (22).

For the manufacture of the sowing roller, use a steel roller with a diameter of about 40 mm.

The roll brake comprises an eddy-current brake built inside a brake roll and including a rotatable, steel roll jacket (1) which contains a non-rotatable multipolar stator (2).

With tubular motor housed inside the stainless steel roller.

The plated nonmagnetic film or layer is deposited at least on the exterior cylindrical surface of a hollow, electrically conductive, metal, nonmagnetic, aluminum roller or nonmagnetic stainless steel roller.

The drive members comprise pliable magnetic substrates (60) made of vinyl, rubber or elastomeric material which magnetically attach to a corresponding steel roller that is being idled.

The cold-rolled hot-rolled high quality rolled hard roll steel coil on the hot-rolled steel roll is rolled and rolled, and all are cold-formed.

Once off, the steel roller slides right out of one hole - but be aware that the other hole is for pivoting.