Hewland Mk9 Gears

[T644HU07]

Most are Hewland gears except Webster as marked. All are used with normal wear.



23:28 Webster $75.00 SOLD

24:27 M $100.00 SOLD
25:27 $75.00 SOLD

Dog rings (2) $35.00 each.See photographs for condition.

Prices do not include shipping from 63303.

[CM/FFdriver]

I'll take the 18/32 please but what does the "S" mean?

Ben

[CGOffroad]

From a previous post by Craig Taylor a few years back.

--------------------------------------------------------------------------------

Lets go over this again:

1. Gear manufacturing industry standard is to mark the gear with its own number of teeth followed by the number of teeth of its mate. Hence the driver gear (internally splined) would be marked 21:31, and its driven gear mate (with dog lugs) would be marked 31:20. Hewland chose to deviate from the standard marking in the hopes of reducing confusion with racers. Webster chose to use the industry standard.

2. Gears must be run as a matched pair. A 21-tooth driver gear from a 21:30 set must not be run with a driven gear from a 21:31 or 21:29 set. At best it will not assemble in the gearbox because of difference in diameter. At worst is a broken gear. This is why gears are sold in matched pairs.

3. What you can learn from gear names Webster and Hewland:

20:31 No other markings Hewland gear of early lineage. Material English versions of 8620 or 9310 if late. However no marking identifiers.

20W31 Webster Gearset, prior to 1986 material 8620

20W31 with date (11/87 example) Webster gearset post 1986, 8620 material.

20W31S with date 1991 or later Webster "s" gearset, upgraded machining, hobbing and grinding facilities introduced. Material 8620.

20M31S (also dated 1993 or later) Webster "s" gearset with material change to 9310.

20 31 M Hewland gearset late tooth design, English version of 9310 steel.

20 31 N Hewland gearset with latest tooth design,english version of 9310 steel. (These are still rare, except in MK5)

For FF 1600 any MK gearset is suitable because of the restricted power. For F/S2000, SV, or any car over 120 HP, only the Webster M or Hewland M or N gears are suitable. Others WILL BE BROKEN.

Craig, I hope that this helps.

Craig
tayrace1@airmail.net
Taylor Race Engineering, Inc.

[kevskisps]

Thanks Craig as that is some good info

From a previous post by Craig Taylor a few years back.

--------------------------------------------------------------------------------

Lets go over this again:

1. Gear manufacturing industry standard is to mark the gear with its own number of teeth followed by the number of teeth of its mate. Hence the driver gear (internally splined) would be marked 21:31, and its driven gear mate (with dog lugs) would be marked 31:20. Hewland chose to deviate from the standard marking in the hopes of reducing confusion with racers. Webster chose to use the industry standard.

2. Gears must be run as a matched pair. A 21-tooth driver gear from a 21:30 set must not be run with a driven gear from a 21:31 or 21:29 set. At best it will not assemble in the gearbox because of difference in diameter. At worst is a broken gear. This is why gears are sold in matched pairs.

3. What you can learn from gear names Webster and Hewland:

20:31 No other markings Hewland gear of early lineage. Material English versions of 8620 or 9310 if late. However no marking identifiers.

20W31 Webster Gearset, prior to 1986 material 8620

20W31 with date (11/87 example) Webster gearset post 1986, 8620 material.

20W31S with date 1991 or later Webster "s" gearset, upgraded machining, hobbing and grinding facilities introduced. Material 8620.

20M31S (also dated 1993 or later) Webster "s" gearset with material change to 9310.

20 31 M Hewland gearset late tooth design, English version of 9310 steel.

20 31 N Hewland gearset with latest tooth design,english version of 9310 steel. (These are still rare, except in MK5)

For FF 1600 any MK gearset is suitable because of the restricted power. For F/S2000, SV, or any car over 120 HP, only the Webster M or Hewland M or N gears are suitable. Others WILL BE BROKEN.

Craig, I hope that this helps.

Craig
tayrace1@airmail.net
Taylor Race Engineering, Inc.

[PATMAGRUDER]

I will take the 20/30
And the 25/25

Pat Magruder
901-574-2757
Pat@pkmarch.com

802 S Roselawn
West Memphis AR 72301

[T644HU07]

PM sent.

I will take the 20/30
And the 25/25

Pat Magruder
901-574-2757
Pat@pkmarch.com

802 S Roselawn
West Memphis AR 72301

[larryw]

I'll take the 25:26 to 48104

Larry Webster
lwebster19@gmail.com
734-645-5859

[T644HU07]

25:26 is sold

I'll take the 25:26 to 48104

Larry Webster
lwebster19@gmail.com
734-645-5859

[Bobsy SR 6]

Craig
I'm very interested in both OD gear sets (26:25& 27:25) Does the pricing reflect the wear? Please send pics

Tom Quaranto
Tquan277@gmail.com
303- 582-5841

[T644HU07]

PM sent.

Craig
I'm very interested in both OD gear sets (26:25& 27:25) Does the pricing reflect the wear? Please send pics

Tom Quaranto
Tquan277@gmail.com
303- 582-5841

[T-Tom]

I purchased a gear set from Tom and it arrived quickly and as described. Good to deal with. I would purchase from him again.
Thanks.
Tommy

[Eric Little]

I purchased a gear set from Tom and it arrived quickly and as described. Good to deal with. I would purchase from him again.
Thanks.
Tommy

+1

Very good experience. I asked for a photo and got it immediately. I asked how he preferred to be paid and did so. He shipped it timely. I got the gears in the condition of the photos and am very happy with the transaction. Would not hesitate to purchase again from Tom.

Eric Little

[apexssk]

I will take the 21/29 and 23/29. Shipping will be to 85718.

Please PM.

Thanks.

[larryw]

How about 25:25? I'll take it if you still have it.

lwebster19@gmail.com

Thanks!

25:26 is sold

[recaryob]

I would like to purchase the 19/31 and the 22/29. Please email me dk28578@gmail.com

Thank you!

[miberns]

If you still have the 17:34 I'd like to buy it. Pls. mail me at ff1600@gmail.com as I don't always check this site.

[T644HU07]

Most are Hewland gears except Webster as marked. All are used with normal wear.

23:28 Webster $75.00

24:27 M $100.00
25:27 $75.00

Dog rings (2) $35.00 each.See photographs for condition.

Prices do not include shipping from 63303.

New Prices

[footewerks]

Do you have a 19/31 gear set available?

[T644HU07]

Do you have a 19/31 gear set available?

No, only the three ratios listed.

[rvrrat]

If you still have the 25/27 - I am interested.

Rvrrat1968@msn.com


Sent from my iPhone using Tapatalk

[T644HU07]

If you still have the 25/27 - I am interested.

Rvrrat1968@msn.com


Sent from my iPhone using Tapatalk

All the gears are sold.