Kenrick Excalibur gearboxes are available with either a single or double spindle (follower) gearbox. They will have centres at either 92mm or 62mm and 92mm. Both followers are sprung so you have the ...
Fuhr genuine gearbox with split spindle function and available with a 35mm backset.
Please note that there has been two variations of latch sizes.Older version is 28mm high and latest version is 33mm...
Lockmaster gearboxes are available in 35mm or 45mm backsets with either a double spindle or single spindle mechanism. Bifold door versions of the gearbox are available in 25mm and 28mm backsets.
Doub...
Roto H650 gearboxes are dimensionally the same as the H600 series but feature internal upgrades. They are available in a 25mm, 28mm, 35mm, 40mm, 45mm, 50mm, 55mm, and 65mm backset with single spindle ...
Anglian multipoint door lock gearboxes are very distinctive, with a square design and no corner cut-outs. The overall length of the gearbox is 221mm and the width is the backset plus 18mm.
Available i...