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Your choices are...
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Air
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Air bearings are a very low friction bearing that rides on a cushion of air.
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Flat Ball Cage
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Flat ball cage linear bearings are non-recirculating or recirculating bearing design where the balls are trapped in a frame that spaces them at equal distance. These balls ride on a rail and are usually lubricated.
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Bushing, Ball
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Bushing, ball bearings are similar to a bushing in construction but have rows of balls to reduce friction and increase stiffness, accuracy, and smoothness. The bushing may be of open or closed construction. Open bushings ride on continuously or intermittently supported round shafts, while closed bushings ride on end supported shafts. Several different types and options are available including recirculating ball, non-recirculating ball, linear only motion, rotary / linear motion, self-aligning, and adjustable preload.
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Needle Roller Cage
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Caged needle bearings are low friction, high load bearings in a composite cage. A common industry designation for these is M/V or N/O type linear bearings.
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Cam Follower
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A cam follower is a wheel on an axle and that wheel runs on bearings. Cam followers offer high speed, rigid operation, and a long working life.
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Crossed Roller Courtesy of Del-Tron Precision, Inc.
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Roller and cross roller bearings are used on linear ways where straightness and accuracy are critical. The trade off is in loading capability.
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Guide Wheel
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A low cost, versatile, and rugged alternative to traditional linear bearings. They can be used on linear or circular rails or guides.
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Hydrostatic / Hydrodynamic
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A linear hydrostatic bearing works much like an air bearing. The bearing body rides on a thin film of oil or water that provides for near frictionless movement.
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Plain / Journal Courtesy of Berg W.M., Inc.
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Journal bearings consist of a split cylindrical shell of hard, strong metal held in a rigid support and an inner cylindrical part of soft metal, which holds a rotating shaft. The primary shaft support is the lubricating fluid, usually oil.
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Linear Motion Guide
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Linear motion guides are linear profiled rails that have a set of mating bearings that travel along the rail.
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Flat Roller Cage
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Flat roller cage bearings are similar to crossed roller bearings except that the axes to all of the rollers are parallel instead of crossed. They consist of a flat cage of rollers with the axes all in line with each other. They can be used in a set of rails with a precision v-guide or between two flat surfaces.
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Linear Roller
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Linear roller bearings are a set of circulating roller bearings that ride on a round or flat guide. These bearings have extremely heavy load capacities.
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Spline Bushing / Ball Spline
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A spline bushing is a linear bearing with contact grooves that match those in a mating shaft. Bushing can be of plain bearing or ball spline design. A ball spline bearing has balls that contact grooves in a matching spline shaft on at least four sides, depending on the number of splines. The balls recirculate as the bearing moves along the guide.
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Other / Proprietary
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Other unlisted, specialized, or proprietary linear bearings.
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Search Logic:
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All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Bearing / Rail Assembly?
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A complete assembly comprised of the bearing and guide or rail.
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Search Logic:
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"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
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