SK20 Bearing Block & Linear Guides SK20
Brif introductions of shaft support housing
Shaft support blocks are used for end or intermittent support where loads are light and slight shaft deflection is not a concern. Unlike shaft support rails, blocks do not permit longitudinal passage of open-type ball bushing bearings. Shaft support blocks enable clamping of shafts, type SB and eliminate the need for bolts to maintain shaft position. Shimming is suggested for high precision applications to eliminate the effect of variations in surface of base or manufacturing tolerances between supports.
Support Block Style | Imperial Type (in) | Metric Type (mm) |
---|---|---|
Sizes | .25" - 2" | 8mm - 40mm |
Support Types | Standard Low Profile Flanged |
Standard Low Profile |
Support Materials | Aluminum Malleable Iron |
Aluminum Malleable Iron |
This linear motion shaft support block is suitable for end or intermittent shaft support where loads are light and shaft deflection is minimal, such as in computer numerical control (CNC) equipment. The aluminum alloy support block has a slit in the top surface to help shaft insertion, a setscrew to lock the shaft in place, and a flat square foot to help accurately align the block. This support block is light weight and is suitable for use in linear motion applications, such as measuring systems, printing equipment, and CNC tools.
Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers.
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