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Reduction Gearboxes 3.5cc and 7.5cc

GB1NA MOCOM 3.5cc gearbox 3.5cc with standard 2:1 ratio 14T x 28T.  Complete with CNC machined aluminium body, flywheel/drive gear, lower Mod 1-10mm wide delrin gear, 5mm drive shaft, bearings etc.  
NOTE. You can specify the gears you want on the gearbox.
wpe3A.jpg (31998 bytes) £79.00
GBV2A MOCOM Valvola/VAC 21 and RSV EVO 21 gearbox complete. APPROVED BY CMB. This is a new CNC machined aluminium gearbox body with 16mm stainless steel shielded ballraces with oil feed to each bearing. This is a lightweight, perfect design for the Valvola and RSV engine making the engine sit lower in the boat than any other gearbox. Complete with  14T top steel gear and  flywheel, 27T bottom delrin gear, aluminium gear carrier and 10mm wide gears for strength. Can be used as shown with a coupling or with a straight through 5mm shaft.

The rubber mounting holes are in the same position as our old Valvola gearbox and so it can be fitted without changing gearbox mountings 

NOTE. You can specify the gears you want on the gearbox.

wpe5.jpg (33802 bytes) 
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£79.00
GB25RS MOCOM gearbox for  RS45 only. NEW CNC lightweight machined aluminium housing with 7mm diameter main nitrided steel shaft. Gear is 10mm wide delrin with aluminium gear carrier.  The lower delrin gear can easily be changed and is held onto the gear carrier by three high tensile screws. The main bearings are 7x19x6.  rs452box.jpg (134828 bytes) £69.00
GB25VAC MOCOM CMB 45 VAC GEARBOX. 3 x full sized ballraces, 2 ballraces at the gear side. complete with steel gear and flywheel. 12mm wide gears. 1.54:1 ratio.  7mm hardened shaft. Other ratios available. wpe46.jpg (11423 bytes)  
wpe21.jpg (8167 bytes)
£82.00
. 3.5cc  GB1NA and GBV2A GEARBOX SPARES . .
GB22 3.5cc Gearbox rubber mount kit complete. 4 short RM8 rubber mounts, 2 alloy angles, 4 M4 mounting feet and screws.  . £10.95
GBV14 14 Tooth steel gear, flywheel and cone.

£18.00
GBV15 15 Tooth steel gear, flywheel and cone.

£18.00
GBV16 16 Tooth steel gear, flywheel and cone.

£18.00
GBV17 17 Tooth steel gear, flywheel and cone.

£18.00
GBVNUT Special nut for all 3.5cc gearboxes 

£4.00
GBV25 25T delrin gear 5mm bore drilled for gear carrier

£10.95
GBV26 26T delrin gear 5mm bore drilled for gear carrier

£10.95
GBV27 27T delrin gear 5mm bore drilled for gear carrier

£10.95
GBV28 28T delrin gear 5mm bore drilled for gear carrier

£10.95
GBV29 29T delrin gear 5mm bore drilled for gear carrier

£10.95
GBV31 2 ballraces 5mm id x 16mm od.for the 3.5cc GB1NA and GBV2A Valvola gearbox

bearingphoto.jpg (15833 bytes)

£5.50
GBV32 Hardened mainshaft 5mm diameter wpe24.jpg (10702 bytes) £5.00
GBV33 Gear carrier and screws.5mm bore

wpe21.jpg (8167 bytes)

£6.95
CMB VAC45 7.5cc GEARBOX SPARES .
GBVA20 20T steel gear for CMB VAC45 wpe2.jpg (20938 bytes) £19.50
GBVA21 21T steel gear for CMB VAC45 wpe2.jpg (20938 bytes) £19.50
GBVA22 22T steel gear for CMB VAC45 wpe2.jpg (20938 bytes) £19.50
GBVA23 23T steel gear for CMB VAC45 wpe2.jpg (20938 bytes) £19.50
GBVA31 31T delrin gear 7mm bore drilled for gear carrier VAC45 12mm wide

£11.95
GBVA34 34T delrin gear 7mm bore drilled for gear carrier VAC45 12mm wide

£11.95
GBVA35 35T delrin gear 7mm bore drilled for gear carrier  VAC45 12mm wide

£11.95
GBVA36 36T delrin gear 7mm bore drilled for gear carrier VAC45 12mm wide

£11.95
GBVA89 Hardened mainshaft 7mm diameter VAC45 wpe24.jpg (10702 bytes) £6.95
GBVA90 Gear carrier and screws.7mm bore VAC45

wpe21.jpg (8167 bytes)

£6.95
. CMB RS45 7.5cc GEARBOX SPARES . .
GB22A Gearbox rubber mount kit complete. 4 RMF26 rubber mounts, 2 alloy angles, 4 mounting feet and socket cap screws.  wpe58.jpg (21811 bytes) £11.00
GB8 20T steel gear for CMB 45RS wpeA.jpg (31919 bytes) £18.50
GB8C 21T steel gear for CMB 45RS  .wpeA.jpg (31919 bytes) £18.50
GB30 Spare delrin gear for GB25A. 7mm bore, 10mm wide.  predrilled, 30T £10.95
GB31 Spare delrin gear for GB25A..7mm bore, 10mm wide. 31T £10.95
GB32 Spare delrin gear for GB25A..7mm bore, 10mm wide. 32T £10.95

GB33 Spare delrin gear for GB25A..7mm bore, 10mm wide. 33T £10.95
GB7GC Gear carrier for GB25A, 7mm bore, aluminium with screws. wpe21.jpg (8167 bytes) £7.95
GB7MM Lower gear-shaft, 7mm diameter x 150mm long nitride hardened steel.  .wpe27.jpg (10702 bytes) £6.50
GB607S Standard bearing for 7.5 gearbox. 7x19x 6 stainless steel  bearingphoto.jpg (15833 bytes) £2.95
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