Symmco Incorporated • 40 South Park Street • Sykesville, PA 15865 • 814-894-2461

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SAE 841 Bronze Solid DiscsSDD series

Symmco manufactures 2 stock sizes of SAE 841 oil-impregnated sintered bronze solid discs at its Pennsylvania and Tennessee plants, from 5/16 to 3/8 inch thickness. Every size in the table below is a stock catalogue part with full dimensions and a 2D drawing.

Symmco does not charge tooling costs on any standard tooling product, there is no minimum order quantity on stocked catalogue parts, and stocked parts ship in 24 hours. The full tooling and terms are on their own page.

Stock sizes
2
Material
SAE 841
2D drawings
2
Made in
Pennsylvania and Tennessee, USA
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Bronze Solid Discs size table: all 2 stock sizes

Listed by Thickness. Search by part number.

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2 bronze solid discs
Symmco Bronze Solid Discs (SDD series): 2 stock sizes with Thickness.
Part NumberThickness(in)Drawing
SDD-80005/162D PDF
SDD-8000-33/82D PDF

All dimensions in inches. Every size listed is a stock catalogue part. Find this size in the part finder and request a quote.

SAE 841 material properties: what these solid discs are made of

SAE 841 oil-impregnated sintered bronze is a nominal 90% copper / 10% tin alloy, sintered to a final density of 6.4 to 6.8 g/cc and vacuum-impregnated with a high-grade, 100-viscosity, non-detergent rust and oxidation inhibited turbine oil, which is what makes a part in this material self-lubricating and maintenance-free in most applications. Symmco's bronze carries 24% oil by volume where the industry standard is 19%, and its minimum K-value of 30,000 sits above the 26,500 industry standard. The bronze is lead-free, Symmco specifies it as MPIF CT-1000-K26 and follows all MPIF standards, and when the standard oil's -10°F to 200°F operating range does not suit an application, multiple oil types are available, including special military-grade oils.

SAE 841 oil-impregnated sintered bronze: material properties Symmco publishes for its solid discs.
PropertySAE 841Note
MPIF designationMPIF CT-1000-K26
CompositionNominal 90% copper / 10% tin
Sintered density6.4 to 6.8 g/cc
Oil content24% by volumeIndustry standard: 19%
K-value (minimum)30,000Industry standard: 26,500
PV value (maximum)50,000
Maximum static load8,000 psi
Maximum surface speed500 surface feet per minute
Standard oilHigh-grade, 100-viscosity, non-detergent rust and oxidation inhibited turbine oilMultiple oil types available, including special military-grade oils
Oil operating range-10°F to 200°F
Lead contentLead-free

The full range of materials Symmco runs, from bronze and iron-copper to stainless steel and soft magnetic composites, is on the materials page.

Other stock families