Part Numbers for Common Repair Parts

Air Chamber Diaphragms:

Air Chambers were used on many machines as low cost, high force cylinders to operate a variety of mechanisms. They contain an internal 'rubbery' diaphragm that is subject to failure and subsequent replacement. Here is a stock number listing for the replacement diaphragms for the several types of air chambers used on Lucas machines:

Air Chamber MarkingAir Chamber ConstructionDiaphragm Stock NoDiaphragm Markings
Type '12'Rolling Diaphragm905974236525
Type 'E'Bolted Flange905975237526
Type '9'Rolling Diaphragm905976236524
Type '16'Rolling Diaphragm905977236526
Type 'A'Bolted Flange905978239884
Type '24'Clamped Flange907823236667



Cog Belts are used as the 'final drive' for high-speed Spindle Rotation on many Lucas models. The following chart will help you determine which belt stock fits your machine.

PitchTeethPitch Length3/8 Inch Wide1 Inch Wide1-1/4 Inch Wide1-3/4 Inch Wide1-7/8 Inch Wide2 Inch Wide2-3/8 Inch Wide2-1/2 Inch Wide3 Inch Wide3-1/2 Inch Wide3-3/4 Inch Wide3-7/8 Inch Wide4 Inch Wide4-1/2 Inch wide
1/210854xx905862xxx906077No 900xxxxxx


() = Mechanical Modifications Required


Machine Hand-cranks:

Many machines use hand-cranks. The older types of cranks were unsafe, since they could be 'forgotten' on the shaft when the machine was returned to power operation. The crank listed below has a 'kick-out' mechanism to not allow the crank to be forgotten while still on the shaft.

Stock NumberDescription
41-1683New Style Crank Handle


Way Wipers:

Early Lucas way wipers (in the days before commercial wipers became available) were actually Lucas part numbers. We no longer stock individual part numbered wipers for the earlier machine models. Part number 905781 is a 'stick' of way wiper material that may be trimmed to length and used to replace most of the individually numbered parts after drilling suitable mounting holes. The 'T' and the 'DC' series of machines continue to use individually part numbered wipers. We have packaged kits of wipers for these models. Each kit should contain the proper quantities and sizes of individual way wipers to fit the largest machines of these models. Smaller machines may have an excess quantity of certain wipers that can be used for future 'spot' replacement duty.

Stock NumberDescriptionUsage
905781Type "D" Wiper Material41B, 42B and previous models
4117-01-0020DC Way Wiper Kit20DC Machines
4217-04-0030DC Way Wiper Kit30DC Machines
4417-08-0030T Way Wiper Kit30T Machines
4717-11-0040T Way Wiper Kit40T Machines


Electric Clutch 'Brushes':

Stock NumberDescriptionSpecs
906041Replacement Brush Insert0.157 Dia Brush for 906044
906044Brush Assembly w/InsertM14x1.5 Thread; 18MM Range
906043Replacement Brush Insert0.236 Dia Brush for 906042
906042Brush Assembly w/InsertM18x1.5 Thread; 22MM Range
905944Replacement Brush InsertTwo-Stage Brush for 905943
905943Brush Assembly w/InsertM18x1.5 Thread; 22MM Range
905942Replacement Brush InsertTwo-Stage Brush for 905943
2LX2065OAKBrush Assembly w/InsertM18x1.5 Thread; 100MM Range


Also, see the Clutch Brush Chart (with Photographs) in the Clutch Area of the Technical Help Section