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Pivot Friction (SMT-MM-30)
Demonstrates the relationship between friction
torque and axial thrust; determines the influence of
bearing cone angle.
The wall mounted apparatus consists of a rotating
circular table on a vertical shaft, with a variety of
interchangeable end pivots and seatings.
End pivots in brass and steel seatings have inclusive
core angles of 60, 90, 120 and 180 (flat) degrees;
additionally a ball thrust bearing may be installed.
The apparatus consists of a rotating circular turntable attached onto the end of a vertical
shaft. The shaft is held vertical within a sturdy wall bracket that must be attached to a rigid
vertical surface, i.e. a wall. At the lower tip of the shaft a special fixing has been created to
accept a variety of end pivots. Mating seatings have been manufactured for the end pivots.
The seatings positively locate at the bottom of the wall bracket so that they mate with their
respective seatings but do not rotate under testing. The seatings are made from different
materials and with different internal cone angles