 | Here we have replaced the clear glass filled laminated base pressing, with a class 'F',
UL approved 50% glass filled moulded nylon material. |
| Moulded side shields electrically insulate the brush shunt from the casting. |
| The moulded base provides high impact and additional strength. |
| The old style brass brush holder pressings, have been replaced with broached, gold
anodised aluminium brush holders, anodised to Grade AA20, riveted onto the moulded base. |
| The brush holder tunnel sections are broached to provide very accurate brush guides. |
| Heat dissipation away from the carbon brush is greatly improved. |
| Integrated moulded alignment pips provide exceptional brush holder alignment, by mould
design. |
| Variable pressure coil springs have been replaced with constant force saddle springs,
giving approximately 50% more brush life. |
| The commutation is greatly increased, also leading to greater brush life. |
Lewis Banks & Sons (Engineers) Ltd.
