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Star GB stock a wide variety of JBS collets. Collets are manufactured from AMPCO a brass / bronze alloy material and can be supplied to suit round, square, hexagonal or any profiled material. When running abrasive materials the collets can be NITRIDED for extra wear resistance.

JBS SIZES:

01 TYPE = Ø28 x 40mm

02 TYPE = Ø33 x 40mm

03 TYPE = Ø42 x 50mm

06 TYPE = Ø48 x 60mm

SDK EQUIVALENT:

SDK28

SDK33

SDK42

SDK48

The JBS “Classic” guide bush suits a majority of applications, in the adjacent picture this bush has been supplied with an extended nose to provide additional support for small diameter bars.

JBS bushes have an adjustment range +/- 0.3mm
“Bar size” guide bushes available for increased accuracy
JBS High precision bushes with runout < 0.02mm available on request

The JBS guide bush in the adjacent picture has been supplied with a built in protective cover. Suitability depends on the TYPE of bush and the size to be clamped.

Alternatively, nose caps are available which also reduce swarf ingress, these nose caps replace the standard nose cap and are manufactured to suit one material size.

SDK guide bushes further reduce swarf ingress into the JBS assembly. These bushes are available in:

Standard precision with runout < 0.02mm
Ultra precision with runout < 0.01mm
Ultra Ultra precision with runout < 0.005mm

In addition these bushes can be supplied with a BL coating for extra wear resistance or with CARBIDE inserts for the ultimate service life.

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