Adjustable Round Guiding Elements
12Pages

Round guiding elements with adjustable play Works standard SN 02.00 >

Simply produced connecting elements.Precise guidance through guideplay adjustment.Provides the typical high dam-ping performance characteristicfor slideways.Fast dismantling capabilityaddresses demands for conveni-ent machine servicing and recycling. Low-cost, ready-to-mountguide bushing.Existing assembling playensures simple mountingeven with large dimensions.Sliding friction in combinationwith minimum guide playpossible.Optimum guide play adjustment possible duringthe assembly process. > Illustrated here using aseries FSL guide bushing. The principle applies to all the listed...

SPIETH guide bushing Series FDK SPIETH guide bushingSeries FSKSPIETH guide bushingSeries FSL SPIETH guide bushingSeries FDL > SPIETH-designed guide bushings are round linear guiding elements for all fields of precise mechanical engineering. These guide bushings are ideal forapplications making use of the bene- fits of the slideway, such as damping properties, but requiring minimal guide play. For those advantages these guide bushings are successfully applied in guide frames, cylindrical carriage guides, on tailstock sleeves, press rams etc. In addition to their linear movement,simultaneous...

The simply to produce surroundingcomponents can be done with com- mon ISO tolerance levels. The exi- sting assembling play always permits easy mounting even for large dimen- sions. The required narrow guidance play can be optimum adjusted during the mounting process, whereby minor geometrical errors in the sur- rounding components as well as operational influences such as increa- sing temperature, can be taken into account. If any wear is occurring, readjusting the play can compensate it. For the FDK - FDL series the guideplay is set by the configuration of thedesign. Some illustrations are...

The housing borehole must be confi-gured so that the entire outside surfa- ce of the guide bushing is covered. The sleeve must also cover the bore- hole of the guide bushing completely in its most extreme axial position. Production tolerance of the housingborehole: H6, surface roughness R > z = 1 m.The quality of the round guide depends to a large degree on the cylindricity and the concentricity of the sleeve. Therefore, minimum geo- metrical error must be aimed for. We recommend observing to tole- rance level IT 2 (ISO). When using series FDK - FDL guidebushings, precise adjustment depends...

Assembly of series FSK - FSL: 1. Insert the guide bushing in the housing borehole. If there is a orienta- tion pin mounted, this must not come to rest axially against the groove in the housing.2. Tighten the clamping screws in the flange cover evenly crosswise until the guide bushing is seated firm- ly in the housing. Even actuation of the clamping screws can be achieved by tightening in each case by a cer- tain angular amount (e.g. 30). Specifying a certain degree of torque for the clamping screws is a less suitable method of ensuring even guide play adjustment.3. Insert the sleeve and...

Fig. 3:Round guide on a welded machine column. Due to the long guidance basis of the guide bushings, particu- lar attention must be paid here to ensuring a precisely flush housing borehole. Fig. 4: Sleeve guide in a tailstock. Minimal guide play can be achieved here during the assembly process. Guide play readjustment is possible at any time. Grease lubrication with facility for occasional re-lubrica- tion is sufficient here. >

Fig. 5: Column guide: Guide play adjustment using threa- ded ring. A locating fit at the threaded ring ensures the necessary rectangularity of face contact at the guide bushing. The required feed path can be pre- scribed when the flange cover has not yet been tightened by turning the threaded ring. The guide bushing is then pre-stressed by tightening the screws at the flange cover. Fig. 6:Working slide with circular guidance. The required degree of guide play is set here by changing the height of the shim ring (see page 8, Assembly series FDK - FDL). Due to existing overdefinition, the...

Fig. 7:Particularly in large-scale machines with their high operating loads, it is advantageous if the design can be configured to ensure an optimum guidance basis at every position of the sleeve. This is achieved using the arrange-ment illustrated here. The external guide bushing shown at the top of the illustration can be offered on request as a special version. The two most frequently appliedmethods of adjusting the guide play are illustrated here. The upper one is with a thread ring and the lower one with a shim ring. For a more detailed description, see Figs. 5 and 6.All variants of...