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01297 20744Opening hours - Weekdays 8.30am to 5pm, Saturday 9am to 2pm
Quantity:
| Total shipping: (VAT incl.) | To be determined |
| VAT: | £ 0.00 |
| Total: (VAT incl.) |
Petersen produce sizes up to 1/2” from seamless (no welds) pressure-tube while sizes 5/8” and above have aluminium bronze thread inserts to prevent galling.
Petersen manufacture all their own components with full traceability and accountability.
Material certificates and certificates of conformity are available on request.
Petersen Stainless Steel Closed Body Turnbuckles are available with multiple options for attaching to your wire rigging:
The Petersen design and manufacturing process has a uniform sizing convention.
The Petersen pin size is the smallest diameter hole that a Petersen pin will fit into.
The hole size is the largest diameter Petersen pin that will fit in the hole.
e.g. a 12mm pin will fit into a 12mm diameter hole and a 16mm hole will accept a 16mm diameter pin
Galling
Galling is the technical term for damage caused by friction and adhesion between two moving, metallic surfaces. Galling occurs when the two surfaces slide or move transversely against each other resulting in a microscopic migration of metal.
Galling may occur due to a lack of suitable lubrication between the two surfaces.
When two metals are compressed together with significant force and then moved against one another, the friction and adhesion cause the surface of one to be pulled by the other.
The galling effect is actually a slipping and tearing of the crystal structure beneath the surface of the metal which materialises as a gouge and/or a torn-up lump (ball) of material.
Some of the gall-transfer material will generally be stuck or friction-welded to the adjoining surface.
Galling can occur with similar or dissimilar metals.
Some metals are more prone to galling than others e.g. Aluminium galls very easily.
Alloys such as brass and bronze have excellent resistance to galling making them suitable for e.g. threads, bushes and bearings
Jimmy Green Marine
The Meadows
Beer
Seaton
Devon
EX12 3ES
Set sail with the benefit of Team Jimmy Green expertise. We are confident that you will look forward to our emails.
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