BENTLEY GEARS        January 2008

GEARS FOR A-C AND D TYPE GEAR BOXES
C Type gears illustrated with standard ratios

 

CAN BE SUPPLIED WITH RATIOS SIMILAR TO D TYPE AT NO EXTRA COST

 

Manufactured from 3% nickel chrome steel with machine cut generated

 teeth  and case hardened for smooth running and long life

A and D type gears now have slightly modified teeth to improve life and reduce noise
A TYPE
GB7 Input shaft, constant mesh gear.  21 teeth £629.00
GB8 3/4 Sliding gear. For six spline output shaft. 25 teeth £506.00
GB14 3/4 Sliding gear. For two key output shaft. 25 teeth £506.00
GB9 1/2 Sliding gear. For six spline output shaft. 28/35 teeth £453.00
GB61 1/2 sliding gear. For two key output shaft. 28/35 teeth £453.00
GB10 Constant mesh layshaft gear. 38 teeth £381.00
GB11 Third layshaft gear. 34 teeth £341.00
GB12 Second layshaft gear. 31 teeth £290.00
GB13 First layshaft gear. 24 teeth £255.00
GB15 Output shaft. Modified to six splines £644.00
GB16 Reverse gear with bush. £274.00
GB17 Layshaft £272.00
GB18 Spigot bush. Modified oil grooves £133.00
GB19 Layshaft nut £44.00
GB66 Aluminium Speedo Gear    £187.00
GB90 Layshaft stud - stretch type      £61.00
Constant mesh conversion third/fourth only £3,328.00
Constant mesh conversion full set £6,256.00

 
B/Bs TYPE
GB28 Input shaft constant mesh gear. 25 teeth Bs ratio. Runs with £639.00
43 tooth layshaft gear, GB29, and will engage with B type third
sliding gear.
GB29 Layshaft constant mesh gear. 43 teeth. Bs ratio £423.00
GB54 3/4 Sliding gear. 29 teeth. For two key output shaft £515.00
GB59 3/4 Sliding gear. 29 teeth. For six spline output shaft £515.00
GB58 1/2 Sliding gear. 45/35 teeth. For two key output shaft £561.00
GB60 1/2 Sliding gear. 45/35 teeth. For six spline output shaft £561.00
GB55 Third layshaft gear. 39 teeth. £393.00
GB56 Second layshaft gear. 33 teeth £327.00
GB57 First layshaft gear 23 teeth £287.00
GB63 Reverse gear and bush £303.00
GB15 Output shaft. Modified to six splines £644.00
GB18 Spigot bush. Modified oil grooves £133.00

 
C TYPE
GB20 Input shaft constant mesh gear. 25 teeth £639.00
GB24 Layshaft constant mesh gear. 43 teeth £424.00
GB21 3/4 Sliding gear. 30 teeth. Standard ratio, runs with GB25 £514.00
GB22 3/4 Sliding gear. 29 teeth. Slightly high ratio, runs with GB25 £514.00
GB23 1/2 Sliding gear 45/35 teeth £561.00
GB25 Third layshaft gear. 38 teeth. Will run with iether GB25 or GB26 £393.00
GB26 Second Layshaft gear.  33 teeth. £327.00
GB27 First layshaft gear. 23 teeth. £287.00
GB50 Output shaft £683.00
GB52 Spigot bush £133.00
GB62 Reverse shaft £133.00
GB63 Reverse gear and bush £303.00
Constant mesh conversion kit. £6,655.00

 
D TYPE
GB30 Input shaft constant mesh gear 21 teeth. £630.00
GB31 3/4 Sliding gear. 25 teeth £506.00
GB32 1/2 Sliding gear. 35/28 teeth £453.00
GB33 Constant mesh layshaft gear. 38 teeth £381.00
GB34 Third layshaft gear. 34 teeth £341.00
GB35 Second layshaft gear. 31 teeth £290.00
GB36 First layshaft gear. 24 teeth £255.00
GB50 Output shaft. Original spline size 45x50x11 £683.00
GB51 Revere gear and bush. 24 teeth £303.00
GB52 Spigot bush £133.00
GB53 Layshaft £448.00
GB48 Speedo gears 27/60 tooth ratio £252.00 Pair
GB49 Speedo gears 29/58 tooth ratio £252.00
GB65 Speedo gears 29/59tooth ratio £252.00
GB64 Speedo gear. Tufnol £169.00
GB70 Reverse shaft

£141.00
Constant mesh conversion kit £6,380.00

 

 

      For B Type gearbox with D ratios use:                                      
GB73 Input constant mesh shaft £639.00
GB76 Layshaft constant mesh gear £424.00
GB88 3/4 Sliding gear - 6 splines £514.00
GB89 1/2 Sliding gear - 6 splines £561.00
GB27 First layshaft gear £287.00
GB78 Second layshaft gear £327.00
GB77 Third layshaft gear £393.00
GB15 Output shaft - 6 Splines (same as A type) £644.00
For C Type gearbox with D ratios
GB73 Input constant mesh shaft £639.00
GB76 Layshaft constant mesh gear £424.00
GB74 3/4 sliding gear - 6 splines £514.00
GB75 1/2 Sliding gear - 6 splines £561.00
GB27 First layshaft gear £287.00
GB78 Second layshaft gear £327.00
GB77 Third layshaft gear £393.00
Use existing output shaft

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