Re: Shock Absorber Straps
Posted by Friartuck On 2018/2/28 16:18:26
I thought this is worth sharing with the Packard group regarding Shock Straps also called Snubber in some circles. Snubber Strap was typically 1 1/2 inch wide all cotton strap about 5/32 thick. It was manufactured by Uniform Hood Lace in Indiana. They manufactured it since inception (c.1919) and stopped around 2014. They claim their Shuttle Loom broke and was not worth repairing. I think that was just an excuse. Several well established vendors have tried to convince Uniform to do another run (say 2500 yards) to no avail. I have been looking for a substitute from other mills, but none don't make it that thick. The best I have found is an all cotton strap manufactured IAW MIL-W-530 Type III. The Mil spec has a breakage limit of 855 pounds. The original snubber likely had a strength of around 1,000 pounds. Also original snubber was coated with Creosote for 1) protection from rot and 2) as a lubricant around the brass shims inside the snubber drum. One mill, Leedon in Rhode Island makes this but won't sell to the public. I couldn't even get Leedon to make a special run of 2,000 yards. Its a wonder how much would someone have to suggest to motivate a mill for a cotton strap.
Options: A vendor in Conn. sells a cotton strap almost as thick as snubber with no coating for $10 per foot. Another vendor, Andy Wise in Maryland offers Kevlar Strap for $15 per foot. Beachwood Canvas in Island Heights, NJ has about 100 yards of this cotton strap (MIL-W-530) (again no coating) for $8 per yard. Beachwood purchased a bunch for a project that never materialized. It's not a standard item on their website. If someone is looking for a cotton strap at a decent price, perhaps this may work for you. A homemade creosote could be made by mixing roofing tar and kerosene. A note of caution, lighter springs may have to be used when rebuilding your shock unit, but believe todays roads are smoother and don't need as strong of a spring. This will also go to preventing this strap from breaking.
Beachwood Canvas
39 Lake Avenue
Island heights, NJ 08732
732-929-3168https://www.beachwoodcanvas.com/[/size]
Attach file:
(212.70 KB)
Options: A vendor in Conn. sells a cotton strap almost as thick as snubber with no coating for $10 per foot. Another vendor, Andy Wise in Maryland offers Kevlar Strap for $15 per foot. Beachwood Canvas in Island Heights, NJ has about 100 yards of this cotton strap (MIL-W-530) (again no coating) for $8 per yard. Beachwood purchased a bunch for a project that never materialized. It's not a standard item on their website. If someone is looking for a cotton strap at a decent price, perhaps this may work for you. A homemade creosote could be made by mixing roofing tar and kerosene. A note of caution, lighter springs may have to be used when rebuilding your shock unit, but believe todays roads are smoother and don't need as strong of a spring. This will also go to preventing this strap from breaking.
Beachwood Canvas
39 Lake Avenue
Island heights, NJ 08732
732-929-3168https://www.beachwoodcanvas.com/[/size]
Attach file:
(212.70 KB)
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