Universal Burnishing Tools

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Versatile Burnishing

Cogsdill Universal Burnishing Tools are designed for burnishing shafts, faces, tapers, contours, and relatively large IDs (greater than 2.750 inches/69.85mm).

  • Boring-Bar style and Index-able turning-holder style designs
  • Turning-Holder styles available with force gauges.
  • Tool designs to suit any part size or configuration, or any turning machine
  • Low surface finishes
  • Standard, available off-the-shelf
  • Adjustable for optimum burnishing pressure
  • Hardened steel or carbide rollers

Boring-Bar Style

The Cogsdill UBT-B series are designed for use in a machine turret configuration on a CNC lathe, where differing diameters are required from a single tool set-up.

Three basic styles are available:

  • UBT-B1 (For large diameters, tapers & faces)
  • UBT-B2 (For smaller diameters, tapers & faces)
  • UBT-B3 (For smaller diameters where facing is not required)

Both UBT-B1 and UBT-B2 are offered with both a hardened steel roll and a carbide roll, where as UBT-B3 is offered with a hardened steel roll only.

Boring-Bar style tool operation:

  • Mount any UBT-B tool in the desired boring bar station. (Note: The red orientation spot must be opposite the contact point.)
  • Bring the tool into contact with the part to be burnished.
  • Feed the tool another 0.003-0.005 inch (0.08-0.13mm) into the part to provide interference between the roll and part so that the roll will float in its spring travel.
  • Interference should not be used to increase burnishing force; burnishing force should only be adjusted with the load adjusting screws. This ensures the tool can be fed on/off the part and across interruptions without damage to the tool or workpiece.
  • For optimum results and long tool life, coolant is required. Any soluble, synthetic, or straight oil can be used.
  • Whenever possible, and for best results, the tool should be fed towards the spindle when burnishing diameters and towards the centerline when burnishing faces. (Note: the UBT-B3 tool cannot be used to burnish faces.)

Turning-Holder Style

The Cogsdill UBT-T series are designed for use in an indexable turning holder configuration, mounted to a machine turret on a lathe.

Four basic styles are available in both left-hand and right-hand versions.

  • UBT-T1 (For outside diameters, faces, tapers and contours)
  • UBT-T2 (For outside diameters only)
  • UBT-T3 (For large outside diameters only)
  • UBT-T4 (For outside diameters where limited space is available)

The UBT-T1 and UBT-T2 are offered with a carbide roll as standard. The UBT-T3 and UBT-T4 are offered with a hardened steel roll only. A force gauge option is available on the UBT-T2 and UBT-T3.

Turning Holder style tool operation:

  • Mount any UBT-T tool in the desired turning station. Use a UBT-T tool that corresponds with the respective turning tool.
  • Bring the tool into contact with the part to be burnished; contact has occurred when you see the mandrel rotating.
  • Feed the tool another 0.003-0.005 inch (0.08-0.13mm) into the part to provide interference between the roll and part so that the roll will float in its spring travel.
  • Interference should not be used to increase burnishing force; burnishing force should only be adjusted with the load adjusting screws. This ensures the tool can be fed on/off the part and across interruptions without damage to the tool or workpiece.
  • For optimum results and long tool life, coolant is required. Any soluble, synthetic, or straight oil can be used.
  • Whenever possible, and for best results, the tool should be fed towards the spindle when burnishing diameters and towards the centerline when burnishing faces.
  • Note: UBT-T2 and UBT-T3 tools cannot be used to burnish faces.
UBT-T with guage

Adaptable Flexibility. Mirror Finishing.

Any size. Any configuration. On any turning machine.

Universal Burnishing Tools video highlights:

To see the full range of Cogsdill videos please visit YouTube

Cogsdill UBT-B1 Universal Burnishing Tool

Cogsdill UBT-T1 Universal Burnishing Tool

We hold a range of tools and spare Carbide and HSS rolls in stock.
Available for immediate shipping!

Straight, Helix, Bottoming

UBT-B1

The UBT-B1 Universal Burnishing Tool is for burnishing outside diameters, faces and inside diameters greater than 70mm (2.75 in.).

Standard Tool Specifications

ubt-b1 specifications
Straight, Helix, Bottoming

UBT-B2

The Cogsdill UBT-B2 Universal Burnishing tool is a smaller version of the UBT-B1. It is suitable for burnishing outside diameters, faces, and inside diameters greater than 39.6mm (1.56 in.).

Standard Tool Specifications

ubt-b2 specifications
Straight, Helix, Bottoming

UBT-B3

The Cogsdill UBT-B3 Universal Burnishing Tool is for use in smaller inside diameters greater than 70mm(2.75 in.) or on large outside diameters greater than 100mm (4.00 in.).

Standard Tool Specifications

ubt-b3 specifications
Straight, Helix, Bottoming

UBT-T1

The Cogsdill UBT-T1 Universal Burnishing Tool is designed for burnishing outside diameters, faces, tapers, and contours.

The new tool eliminates the need for left or right handed configurations, as a single tool now suits both orientations. The UBT-T1 is supplied as standard with a carbide roller.

Standard Tool Specifications

Straight, Helix, Bottoming

UBT-T2

The Cogsdill UBT-T2 Universal Burnishing Tool is designed for burnishing outside diameters.

The tool comes in both left hand and right hand configurations. The UBT-T2 is offered with both a hardened steel and a carbide roll.

Standard Tool Specifications

UBT-T2 LH specificationsUBT-T2 RH specifications
Straight, Helix, Bottoming

UBT-T3

The Cogsdill UBT-T3 Universal Burnishing Tool is designed for burnishing large outside diameters (greater than 100mm/4in.). The tool comes in both left hand and right hand configurations.

Standard Tool Specifications

UBT-T3 LH specificationsUBT-T3 RH specifications
Straight, Helix, Bottoming

UBT-T4

The Cogsdill UBT-T4 Universal Burnishing Tool is a compact design for use where limited space is available.

  • Designed for, but not limited to, use on multi-spindle automatic and screw type machines.
  • Available in both “LH” – left hand and “RH” – right hand models.
  • Designed to burnish outside diameters.
  • Low surface finishes attainable.
  • Adjustable for optimum burnishing pressure.
  • Low cost replaceable burnishing roll.
  • Standard and available off-the-shelf.

Standard Tool Specifications

ubt-t4 lh rh both

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