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The best solution for high speed backstop applications is a backstop in which the locking elements do not wear while the device is rotating. This will result in a long dependable life.
The backstop should also be designed so that its outer race is the stationary element and the inner race does all the overrunning or freewheeling. This permits an easy, low cost installation.
Marland Clutch has the ideal high-speed backstop. IBS models feature a sprag backstop that is made for an overrunning inner race and has sprags that lift off of the outer race at high speeds.
The IBS models are designed to be built into your equipment on the high-speed or intermediate speed shaft where the torque is the lowest. The IBS "lift-off" design eliminates the constant rubbing and wearing of the sprags when the backstop device is freewheeling.
The IBS models design makes them simple to apply to your equipment. The inner race is put on the shaft and the outer race is fixed to the housing.
CSK Series One-Way Bearings
The CSK model freewheel is a sprag type clutch integrated into a 6200 series ball bearing (except sizes 8 and 40). It provides you with a one way clutch, and eliminates the need for a ball bearing. It gives a high degree of freewheeling accuracy while utilizing a minimum of space.
The CSK model freewheels can be used in backstop, overrunning or indexing applications.
The CSK model freewheels are available with bores to 40mm (1.57") and torque ratings to 384 lb. ft. They are supplied filled with grease and are maintenance free.
Marland Clutch brings to the North American market a line of proven sprag type free-wheel clutches. Marland utilizes the knowledge of its sister divisions, Stieber® of Germany and Formsprag® of the United States, to manufacture world class high performance sprag clutches in the United States. The RMS, RMT and RMI model freewheels include ball bearings and seals. These self-contained freewheels have a bolt circle on their outer race (see dimension "B") to which pulleys, gears and torque arms can be mounted. The freewheels are mounted onto shafts which may be of any diameter up to and including the maximum bore shown below. Keyways are provided.
QUALITY ASSURANCE
implements the following QA (quality assurance) measures to assure satisfactory products, performance, and delivery: