Parts: Gears / Changewheels

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Boxford and South Bend "9-inch" Changewheels & Tumble Reverse Gears

Changewheels (and metric to inch and inch to metric transposing gears) to fit Boxford and other South Bend 9-inch Clones (e.g. Hercus, Purcell, Smart & Brown Sabel, Blomqvist, Storebro, etc) All are 18 D.P. with a 14.5-degree pressure andlge and 0.125" depth of tooth. They are 3/8" wide, have a 9/16" bore, and have a 1/8" keyway. The idler and compound gears (two gears on one shaft) are different: they have a 5/8" bore with no keyway and are fitted to a hardened bush held in place with a through bolt.

£28.80

Boxford Lathe Tumble Reverse Gear - Late models 21-degree pressure angle

Boxford Tumble-reverse gears from Serial No. 11-13513 - the introduction of the Mk.2 Models with a single lever on the top of the headstock to engage the backgears. The tumble gears have 32 teeth and a 20-degree pressure angle. Made in the correct grade of cast iron - we have sold these gears for over 30 years.

For models prior to this with a 14.5-degree pressure angle, see here.

£38.40

Boxford Lathe Tumble Reverse Gear - Early Models 14.5-degree pressure angle

Boxford lathe Tumble Reverse Gear Early Models

This gear is for all Models prior to Serial Serial No. 11-13513 - the introduction of the Mk.2 Models that have a single lever on top of the headstock to engage the backgears. 32 teeth and a 14.5-degree pressure angle. Made in the correct grade of cast iron - we have sold these gears for over 30 years.

For later models (the Mk. 2 AUD, BUD and CUD) with a 21-degree pressure angle see here.

£38.40