SWISS-TYPE LATHE GUIDE BUSH

TD20R Guide Bush

Dimensions, equivalent numbers, thread specification, PRONIXT bore capacities and common machine references for the TD20R guide bush. Standard steel and carbide-insert configurations are available for application-specific production.

TD20RT22-68-M22.1F391R-220290T
PRODUCT & DRAWING

TD20R Guide Bush Product and Dimensional Reference

Compare the product reference with the dimensional drawing. Confirm the complete machine model, connection thread and original dimensions before ordering.

TD20R Product ReferenceGUIDE BUSH
TD20R guide bush product reference for Swiss-type lathes
TD20R Guide Bush precision guide bush product reference.
Dimensional DrawingCAD Reference
TD20R T22-68-M22.1 F391 guide bush dimensional drawing
T22-68-M22.1, F391, J7AR, 39.001 and 3455E dimensional and thread reference in millimeters.

Equivalent Model References

Common catalog and dimensional references for this guide bush family. Always compare the complete dimensions and thread.

Primary ReferenceTD20R
Dimensional CodeT22-68-M22.1
European ReferenceF391
Additional CodesJ7AR / 39.001 / 3455E
TECHNICAL SPECIFICATIONS

TD20R Guide Bush Dimensions

PRONIXT order number R-220290T. Dimensions are shown in millimeters. A° follows the dimensional drawing convention for this model.

Order No.ØdØDLThreadA°Material
R-220290T22.029.068.0M22 × P1.016°Steel / Carbide Insert
Maximum Round BoreØ16
Maximum Hexagon Bore13 AF
Maximum Square Bore11 AF

Technical note: Bore capacities shown above are PRONIXT reference values, not universal limits for every supplier. Final guide bore and running clearance must be based on the actual bar diameter, tolerance, straightness and material.

MACHINE REFERENCES

Common Swiss-Type Lathe References

Common references for selected 12 mm and 16 mm-class Swiss-type lathe applications. Exact compatibility depends on the machine configuration and guide-bush holder.

Machine names are cross-reference starting points only. Confirm the machine model, original marking, outside dimensions, thread and A° before ordering.

Available TD20R Guide Bush Options

Select the bore and material according to the bar stock and operating requirement.

  • Hardened steel body with carbide guide insert
  • Round, hexagon and square guide bores
  • Smooth bore for controlled bar movement
  • Extended carbide length options where applicable
  • Customized bore size or special profile from drawing or sample

Information Required for Ordering

Provide the following details for technical confirmation.

  • Complete machine brand and model
  • Guide bush reference number or original marking
  • Actual bar diameter, tolerance and straightness
  • Workpiece material and required bore profile
  • Outside dimensions, thread and A° when available
  • Required quantity, drawing, photos or physical sample
RELATED TECHNICAL REFERENCES

Compare model numbers, review clearance or identify an unknown guide bush.

TD20R GUIDE BUSH FAQ

Frequently Asked Questions

Do the listed reference numbers describe the same TD20R guide bush family?

They are commonly used as cross-references for the same general dimensional family. Confirm the outside diameters, length, thread, A° and machine application before ordering.

Is the nominal bar diameter enough to specify the guide bore?

No. The actual bar diameter, tolerance, straightness, surface condition and material all affect the required running clearance.

Can TD20R guide bushes be produced with hexagon or square bores?

Yes. PRONIXT reference capacities are Ø16 round, 13 AF hexagon and 11 AF square. Other profiles can be evaluated from a drawing or sample.

Need a TD20R Guide Bush?

Send the machine model, guide bush reference, actual bar size, tolerance, workpiece material and quantity. Drawings, photos or samples are welcome.

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