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C-22A1741

COMPETITION STEEL BAULK RING

Mini Spares Performance Baulk ring.

The standard sintered baulk (synchro) rings are not tough enough for the demands of performance useage, in many instances lasting only one race before failure or breakage. The main reason is the incompatibility of the material specification with the usage, basically, it is too brittle. Our current competition baulk ring is cnc part machined then heat treated and then grooved for accuracy and concentricity in a certain grade of metal. This provides an exceptionally strong ring similar to those produced by Leyland in the 60s. Looks the same as standard apart from a corrected area of induction hardening around lugs and the 6 oil slots are rounded rather than square but performs better on moly coated gears such as all original Rover or Minispares evolution gears. The old bronze type was for non moly coated gears which some gear makers were supplying but is now obsolete. These are also manufactured to sit at the correct height on gears unlike most others now available including genuine which can cause gearbox's locking up on assembly. A new aBaulk ring should ideally sit at about 45 thou above gear with 40-60 being the usual range. anything below 30 thou and the gear should be examined for replacement.

Most of the racers using these baulk rings have found they last longer than any other available and because of the exact machining tolerances reduce the amount of sludge usually found in a gearbox as they wear.
  • £19.99 exc vat
  • £23.99 inc vat

 In stock

 
help Recommended usage 4 x C-22A1741 to fit one mini.
See details below of where C-22A1741 is used in AKM manual.
 
Gears - Qty 4

 
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Gears

Gearbox & Gear Train

Classic Mechanical Parts Manual
 

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Fitting instructions / Articles

C-22A1741 - COMPETITION BAULK RING – Fitting Instructions


Manufactured from high-tensile manganese-bronze, these baulk rings were developed for competition use where the standard sintered metal baulk rings have proven far from adequate. This material is not to be confused with the brass/silicone- brass materials, all-over-machined, experimented unsuccessfully with by others in the late eighties/early nineties. It is a purpose-sourced material, precision cast and finished-machined using the very latest technology....

C-22A1741 STEEL BAULK RING


C-22A1741 steel baulk rings are direct replacement for the sintered type, which have been used for all standard production uses for the last few decades.

Under competition use the sintered type could either break through being to brittle and of limited metal integrity or simply wear out quickly. Minispares looked at the old pre 1970 steel type baulk rings used so successfully on the Monte Carlo and rally cars of that time where...