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ROSTA MOTOR BASES
ROSTA Motorbase Type MB 27
The ideal standardized motorbase for smaller belt drives with electric motors from 0.75 to 4.0 kW (frame size dimensions 90 S/L to 112 M). This base is delivered completely assembled. Thanks to its extremely compact overall dimensions, the type MB 27 can be installed everywhere without any major design changes. Therefore, the MB 27 is an ideal alternative to obsolete, non-automatic tension rails. The pretensioning device with its left and right-hand thread gives a big positioning range offering an optimum adaption of the working angle to the driven pulley. All steel parts are painted with a blue primer.
ROSTA Motorbase Type MB 38
The new ROSTA motorbase Type MB 38 for motor frame sizes from 132 S to 160 L (3 to 18.5 kW) is now available on the drive component market - compact, operatorfriendly, ready for immediate installation and cost-effective. Its new features are, above all, the price, the ready-to-install design and the simplest-possible installation procedure with the new pre-tensioning device.
With the new horizontal aligned finethread adjusting spindle, both the pre-tension and the necessary inclination of the motor plate can be simply adjusted. The ready-to-use construction, the belt track adaptation and the fast clamping system make the MB 38 absolutely revolutionary and extremely user-friendly in comparsion with alternative and predecessor models! The frequently occurring "outside applications" in screen drives, crushers and air conditioning systems have been taken into account through the galvanisation of the components.
ROSTA Motorbase Type MB 50
The type MB 50 is the most universal self-tensioning base for all friction belt drives with 5.5 to 45 kW electric motors (frame size dimensions 132 S to 225 M). The standardized base plate can be installed on the rubber spring either "center" or "off-set" according to the position of the driven pulley. The pretensioning device can be attached in 3 different positions allowing to incline the base plate according to the ideal working angle. The belt pretension can be continuously settled equivalent to the belt size and quantity . The ROSTA motorbase type MB 50 is supplied disassembled in different kits; all steel parts are painted with a blue primer.
