1.a Norton SOHC Vertical Coupling and Bevel Parts

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SOHC (Model 30M/40M) Bottom Magnesium Bevel Casting and Plain Bearing

Product no.: 0001 A11M/768

- Magnesium SOHC (Manx Spec) Bottom Bevel Casting, as fitted to pre-war Works bike, and occasionally some Pre and Post-War customer (i.e.Gardengate) Manx's. Includes Bronze bearing

£370.00 *
Not in stock

SOHC (Model 30M/40M) Top Magnesium Bevel Casting and Plain Bearing

Product no.: 0002 A11M/752

Magnesium SOHC (Manx Spec) Top Bevel Casting, as fitted to pre-war Works bike, and occasionally some Pre and Post-War customer (i.e.Gardengate) Manx's.  Comes with bronze bearing fitted and pinned

£370.00 *
Not in stock

SOHC (Model 30/40 International) Bottom Aluminium Bevel Casting and Plain Bearing

Product no.: 0003 A11/768

- Aluminium SOHC Bottom Bevel Casting, as fitted to all road going Internationals and many racing Internationals as well as some SOHC Manx Nortons.  Comes fitted with bronze bearing and pinned

£290.00 *
In stock

SOHC (Model 30/40 International) Top Aluminium Bevel Casting and Plain Bearing

Product no.: 0004 A11/752

- Aluminium SOHC Top Bevel Casting, as fitted to all road going Internationals and many racing Internationals as well as some SOHC Manx Nortons. Comes with bronze bearing fitted and pinned.

£290.00 *
In stock

New SOHC Vertical Shaft - 500cc Standard Length Type - Each

Product no.: 1055 A11/763

- This listing is for a SOHC Vertical Shaft, of the standard Norton type, fitted to most 500cc CS1 and International models from 1931-54, to accept normal SOHC Oldham Couplings.  It is CNC manufactured to a high standard of finish and accurate tolerances.  Please read detail listing before ordering to fully understand background and details of these shafts. Price is a discounted price.

£140.00 *
In stock

SOHC Oldham Coupling (Top and Bottom) - Std Size - 3/16" Thickness: (Each)

Product no.: 0683 A11_764

This is the Oldham Coupling that is fitted to all SOHC engines as part of the the vertical shaft assembly.  Two of these are required per engine, and we sell them in various thicknesses.  This listing is for the Std 3/!6" thickness version.  See main listing description for further detail of fitting and thickness required.  Price is 'each'

£26.00 *
In stock

SOHC Oldham Coupling (Top Only) - Various Sizes: (Each)

Product no.: 0684 A11_764PX

This is the Oldham Coupling that is fitted to all SOHC engines as part of the the vertical shaft assembly.  Two of these are required per engine, and we sell them in various thicknesses.  This listing is for the none stanard type for different complression ratios - which we can offier in various thicknesses.  See main listing description for further detail of fitting and thickness required.  Price is 'each'

£26.00 *
In stock

Vertical Shaft Top or Bottom Bevel Collar

Product no.: 0460 A11/754

This is the steel collar that fits over the shaft at the end of the top or bottom bevel, its purpose being to contain the Oldham Coupling that fits into the tang at the end of the bevel gear shaft. Ideally the collar should be a 'nip' fit over the shaft, where it is lightly tapped on (I use an alloy drift with hammer, with the bevel gear bottom face sitting on an alloy/wood block). For the lower bevel gear this also seems to serve a second function, in that it stops the lower bevel gear dropping through gravity onto the crankshaft bevel gear. Not sure if this was Norton's original intention (or actually if it makes any significant difference!), but for this reason, I always try and make the collar a nip fit on the shaft. Because there seems to have been a considerable variation of SOHC Bevel Gear shaft diameter variation (i have seen up to 1.5 thou variation on the quite considerable number of gears I have measured - even unworn shafts) we have made these collars to be a good fit over the bevel gears we manufacture - which we believe to be the most correct diameter - i.e. a nominal 0.7485" - 0.749". If the collar is not an ideal fit over your own gear:- if too tight - you can carefully 'flapwheel' the inside diameter of the collar, until it taps on, or, if too lose - use a small quantity of 'Bearing Fit' to retain the collar. Note: we also sell a one thou undersize collar (Item 0470), so if you have an original bevel gear and you think the shaft diameter is less than above, then probably best to go for item 0470 (or buy one of each . . . and you can have a choice!)

£5.60 *

Vertical Shaft Top or Bottom Bevel Collar - Undersize 1 Thou

Product no.: 0470 A11/754_US
This is the steel collar that fits over the shaft at the end of the top or bottom bevel, its purpose being to contain the Oldham Coupling that fits into the tang at the end of the bevel gear shaft. Ideally the collar should be a 'nip' fit over the shaft, where it is lightly tapped on (I use an alloy drift with hammer, with the bevel gear bottom face sitting on an alloy/wood block). For the lower bevel gear this also seems to serve a second function, in that it stops the lower bevel gear dropping through gravity onto the crankshaft bevel gear. Not sure if this was Norton's original intention (or actually if it makes any significant difference!), but for this reason, I always try and make the collar a nip fit on the shaft. Because there seems to have been a considerable variation of SOHC Bevel Gear shaft diameter variation (i have seen up to 1.5 thou variation on the quite considerable number of gears I have measured - even unworn shafts). This particular item is an alternative to item 0460, it being approximately one (1) thousandth of an inch tighter on the shaft than 0460 - i..e. ideal for bevel gears with a nominal diameter of 0.7475" - 0.748" or less. if the collar is too tight - you can carefully 'flapwheel' the inside diameter of the collar, until it taps on, or, if too lose - use a small quantity of 'Bearing Fit' to retain the collar. Note: If you think your shaft is a greater diameter than above, then item 0460 may be better - or if unsure buy one of each!
£5.60 *

SOHC Vertical Shaft Top or Bottom Bevel Bearing - Original RHP Twin Row Type

Product no.: 0005 A11\755

- This is the very important twin row, self centering bearing that was originally fitted in both top and bottom bevel housings in all International and early Manx engines. Now obsolete and unobtainable - March 2020:  See detail listing for availability

£160.00 *
In stock
can be shipped within 60 days

SOHC Vertical Shaft Top Bevel Bearing - Replacement type

Product no.: 0006 A11\755B

- Single row (fixed race - not swivelling) RHP bearing, that can be used as an alternative to the original type twin row type (Item no 0005) on the top bevel housing only.  See detail description for this item and description for item 0005 before purchasing

£76.00 *
In stock

Bottom Bevel Housing Shim - Set of 5 Shims

Product no.: 0326b A11/766-s

- Essential when rebuilding your engine to ensure that the lower vertical bevel gear has the correct backlash and position in relation to the crankshaft bevel gear, these lower bevel shims fit between the timing case housing and the lower bevel housing. This is for a complete set of 5 shims in the following sizes :

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

 

£18.00 *
In stock

SOHC Bottom Bevel Housing Shim - Various Sizes (Each)

Product no.: 0326 A11/766

- Essential when rebuilding your engine to ensure that the lower vertical bevel gear has the correct backlash and position in relation to the crankshaft bevel gear, these lower bevel shims fit between the timing case housing and the lower bevel housing - Fitted in conjunction with the timing case shim, the ideal positioning is acheved when the gears are in line and there is a just perceptable gap (backlash) between teeth. - 

Available in the following 5 sizes : 0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

Note: if buying individual shims, please state size when you place the online order, thanks. Update Feb 2015: Now back in stock again

 

 

 

 

£3.80 *
In stock

Upper Bevel Housing Shim - Set of 5 Shims

Product no.: 0327b A11/770-s

- Essential when rebuilding your engine to ensure that the upper vertical bevel gear has the correct backlash and position in relation to the camshaft bevel gear, these upper bevel shims fit between the cambox shell casting and the upper bevel housing. This is for a complete set of 5 shims in the following sizes : 

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

 

£18.00 *
In stock

Upper Bevel Housing Shim - Various Sizes (Each)

Product no.: 0327 A11/770

- Essential when rebuilding your engine to ensure that the upper vertical bevel gear has the correct backlash and position in relation to the camshaft bevel gear, these upper bevel shims fit between the cambox shell casting and the upper bevel housing - this is for single shims available in the following 5 sizes :

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

£3.80 *
In stock

Bottom Bevel Housing Shim - DOHC Coarse Bevel Type (Larger hole): Set of 4 Shims

Product no.: 0862S A11M/766C

This is a set of 4 lower bevel shims, of the type fitted to later DOHC engines - those fitted with Coarse Bevel gears.  They have a larger central hole than the normal SOHC lower bevel shim - being just over 51mm diameter.  This is for a set of 4 shims in the following sizes:

0.5mm/0.3mm/ 0.2mm/0.1mm.  See listing for more detail on thicknesses.

 

£14.50 *
In stock

Bottom Bevel Housing Shim - DOHC Coarse Bevel Type: Single Shim - Various Sizes (Each)

Product no.: 0862 A11M/766C1

This is for a single lower bevel shim, of the type fitted to later DOHC engines - those fitted with Coarse Bevel gears.  They have a larger central hole than the normal SOHC lower bevel shim - being just over 51mm diameter.  We can supply these shims in the following sizes: 

0.5mm/0.3mm/ 0.2mm/0.1mm/0.05mm.  See listing for more detail on thicknesses.

£3.80 *
In stock

SOHC Vertical Shaft Bottom Bevel Dished Washer

Product no.: 0007 A11/756

- Dished Washer that fits under the Lower Bevel (twin) ball bearing on all SOHC bottom bevel castings. Designed to capture any errant balls that should drop from the bearing (a very common fault) and an absolute essential to fit. Price is each

£4.50 *
In stock

Vertical Bevel Housings :5/16" Studs/Nuts/Washers - Set

Product no.: 0008 BS001
- All of the above, with studs, nuts and washers for both top and bottom bevel housings. Comprising 8 studs, 8 nuts and 8 reduced head washers. - Slightly cheaper when bought as a set. - Note: this set is supplied with stainless spring washers, these have the same width as reduced head washers and are indistinguishable when tightened down. They also have the benefit that if you struggle to get a spanner into the rear nuts, they are less likely to come adrift with spring washers (reduced head plain washers can be requested instead of, if required)
£33.00 *

Vertical Bevel Housings :5/16" Studs

Product no.: 0009 A11/783
- 5/16" Cycle Studs, fitted to both crankcase and cambox to retain Bevel Castings, 4 required per bevel casting. Manufactured just as per original, except in Stainless Steel. Note: As per originals, one end of these has a fractionally longer length of thread than the other. Over the years Nortons' manufactured the vertical bevel casting with different flange widths, that meant the studs can sit at slightly different heights in relation to where the reduced head nut sits when fully tightened. These studs are made with the widest normal flange in mind (i.e. so the nut should always have full thread contact with the stud - but as each end has a slightly different length, you can try both ways and one of them should work out about right!
£2.50 *
In stock

Vertical Bevel Housings :5/16" Reduced Head Nuts

Product no.: 0010 E3231
- The correct (reduced head) nut, used to retain both top and bevel castings, 4 nuts per casting. Manufactured in Stainless Steel. These nuts have their faces machined and are very high quality crisp finish, particularly nice as they are used on a particularly focal part of the engine
£1.60 *

Thin Width Gearbox/SOHC Bevel Stud Spring Washers (Stainless Steel) - 5/16" (per 10)

Product no.: 0102 SW002

Used on upright Norton gearbox's, these stainless steel thin width spring washers are identical to those fitted under the blind nut on the front gearbox cover, but are also a very useful alternative to the original 'reduced with' washers used on SOHC Norton bevel castings studs. Ours are in stainless steel and of good UK quality, price is for a pack of 10

£2.30 *
Not in stock

Vertical Bevel Housings :5/16" Reduced Head Washer (Pack of 8)

Product no.: 0011 11796

- The correct 'reduced width', washers, used in conjunction with nuts above. Manufactured in Stainless Steel.   Price is for pack of 8, which will allow for top and bottom bevel housings - 4 required for each bevel housing

£2.10 *

SOHC Vertical Shaft Tube in Stainless Steel : 350cc size

Product no.: 0012 A11/765A

Manufactured from seamless stainless steel and ground polished, these tubes are manufactured with exactly the same pressed flange as the original items. To my knowledge they have been unobtainable for some time now and are lovely to look at. Look really great when fitted along with my stainless union nuts

£29.00 *

SOHC Vertical Shaft Tube in Stainless Steel : 500cc size

Product no.: 0013 A11/765B

Manufactured from seamless stainless steel and ground polished, these tubes are manufactured with exactly the same pressed flange as the original items. To my knowledge they have been unobtainable for some time now and are lovely to look at. Look really great when fitted along with my stainless union nuts - 12\05\11: I am pleased to say that I now have another batch of these in stock (as always the price has risen, due to the increased cost of material and the increase in tax, but they are nice)

£30.00 *

SOHC Vertical Shaft Tube in Stainless Steel : 600cc size

Product no.: 0013b A11/765C

Manufactured from seamless stainless steel and ground polished, these tubes are manufactured with exactly the same pressed flange as the original items. To my knowledge they have been unobtainable for some time now and are lovely to look at. Look really great when fitted along with my stainless union nuts - 12/5/11: I am pleased to say that I have just recently had a new batch of tubes made, including some of these very long 600cc tubes

£31.00 *

Vertical Shaft Top or Bottom Union Nut (Stainless Steel)

Product no.: 0014 A11/761

- Large gland nut that screws into top or bottom bevel casting. Manufactured in high quality Stainless Steel. Direct replacement for original, but designed to accept modern 'O' Rings (3 per unit) rather than orignal rubbers ring (for improved oil retention)

£30.00 *
In stock

Vertical Shaft Sealing 'O' Ring - Set of 3

Product no.: 0015 A11/758N

- Modern 'O' Ring. Direct replacement for E10/E13 rubber ring. 3 required per gland nut, (see above). - Note: this 'O' ring cannot be used with the original type Union Nuts

£2.20 *
In stock

350cc Vertical Coupling Tube Set

Product no.: 0016a CT001a

- This set consists of the vertical coupling tube A11/765 in 350cc size, two union nuts A11/761 and six 'O' rings A11/785N - Not only will they transform the look of your cammy engine, but they are slightly cheaper when bought as a set. Note: Copper union nut washers (item 0017) sold seperately

£89.00 *

500cc Vertical Coupling Tube Set

Product no.: 0016b CT001b

- This set consists of the vertical coupling tube A11/765 in 500cc size, two union nuts A11/761 and six 'O' rings A11/785N - Not only will they transform the look of your cammy engine, but they are slightly cheaper when bought as a set. Note: Copper union nut washers (item 0017) sold seperately

£90.00 *
*
Recommended Retail Price, plus delivery
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1.a Norton SOHC Vertical Coupling and Bevel Parts
Norton SOHC Coupling and Bevel Casting Parts