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Products > Sprung Diesel Bogie Kits

Heljan Class 47

Kit PK012. Price and Availability here

Heljan are proposing to release a new Class 47 model Q4 2022; we presume that it will not be compatible with this kit. More information here.

Kit Features

  • Etched brass fold-up construction.

  • Steel ‘guitar wire’ springing.

  • Primary and Secondary springing.

  • Primary springing by two independent spring beams on each side of each bogie to mimic the sprung equalization beams of the prototype.

  • Secure fit to locomotive chassis block, using an etched brass pivot frame.

  • Adjustable ride height using plastic card spacers.

  • Uses original A1A drive units, with straightforward modifications.

  • The centre, undriven axles are securely located and weighted.

  • The original cosmetic bogie sideframes are re-used, suitable fixing surfaces being provided.

  • Secondary spring hanger and seat details are included on the bogie bolster. Cosmetic secondary springs can be removed from the sideframes and fixed to the bolsters for added depth of detail.

  • Optional etched brake shoe, hanger and lower pull rod components can be fitted to replace the original representations which are moulded flush with the outside of the bogie rather than being aligned with the wheels.

Pivot Frame
The bogies are mounted in the locomotive by etched brass pivot frames secured to the chassis block. The bolster tops are secured to the pivot frames by a thread-locked brass screw, under a slight pre-tension to ensure that the bolster swivels freely but without any rocking movement. A plastic card spacer between the two allows fine control of ride height.
Drive Unit
Heljan drive unit, temporarily separated from its undertray, modified to fit sprung bogie. External fixings and clips are removed, and the slot for the centre, undriven, axle is opened out so that the unit does not interfere with the movement of that axle. The original pickup strips are glued to the side of the unit, slotted in to the residual stubs of the sideframe mounting spigots.
Heljan Class 47 Bolster
Bolster for Heljan Class 47 sprung bogie.
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