The small
spring applied brake series from Ogura
(models RNB 0.2, 0.4, and 0.8) have been redesigned and now have a thinner
profile. The brakes overall reduction in thickness is around 10
percent. (RNB models 1.6, 3 and 5 are 30 percent thinner).
Advances in
friction material have allowed the brakes to maintain their same torque rating
while eliminating the need for higher force springs and a correspondently
higher wattage coil. The new thinner spring applied holding brakes are
ideal for the servo motor and robotics industries where size and weight is
always a concern. Since less steel is used in the coil shell and less
copper in the windings, cost of the brakes are also lower than the current RNB
series. On some of the models, the outside diameter has been slightly reduced
but all of the models have the same through-hole mounting dimensions as the
current RNB brakes, so brake models will be interchangeable.
