g-bits.co.uk Brass Top Hat Bushes

CNC machined brass top hat bushes available in a range of bores, and suitable to protect softer sideframe materials from metal axles. Drawing (above right) shows the 3mm bore version, all bushes have the same external case dimensions.

Sold in packs of eight bushes, sufficient for 4 axles (ie two 4-wheel trucks or one bogie vehicle), all bushes are £2 (inc VAT) per pack.

Pack Type

8 x 2mm Bore

8 x 2.5mm Bore

8 x 3mm Bore

8 x 1/8in Bore

8 x 3.4mm Bore

Part Number






Suitable for

Roundhouse, Tenmille O, O-gauge type axles, GRS 2mm+

3/32 inch type axles, oversize 2mm O gauge

Accucraft*, USA Trains

Accucraft*, Aristocraft, Bachmann, LGB

1/8 inch type axles, some Tenmille SM32

+ GRS wheelsets PG500, PG501 and PG606, PG607. Some customers have reported a percentage of axles with one oversize journal, which needs lapping down to below 2mm to use these bushes.

* Journal size on Accucraft wheelsets varies - all those we have tested will run comfortably in a 1/8inch bore, but some axles are smaller, and a closer fit may be obtained with a 3mm bush.

P&P on bushes is £3.50 for any quantity, or free if ordered at the same time as any other items. All consignments are sent Royal Mail signed for / independent courier depending on weight.