UDC Parts Belts Are Lab-Tested forStrength, Flexibility & Heat Resistance
UDC Parts mower belts have been independently tested by SGS according to ASTM D638-22 for tensile strength and elongation. Selected belt models were also tested for heat aging and wear performance to confirm durability under demanding mowing conditions.
SGS Tested
ASTM D638-22
ASTM D573-04 Heat Aging
Wear Tested
Tested for Breaking Strength and Flexibility
The ASTM D638-22 test measures how much force a belt can withstand before breaking and how far it can stretch before failure. For mower belts, this matters because the belt needs to stay strong under load, while still having enough flexibility to work around pulleys.
3650–11800 N
Tensile Force at Break
13–44%
Elongation at Break
Results vary by belt profile and model.
100°C / 212°F ·48h
Tested at 100°C for 48 Hours
Selected UDC Parts belts were tested under high-temperature aging conditions. After 48 hours at 100°C, the tested samples showed no cracks, no deformation, and no critical visual changes.
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No cracks
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No deformation
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No critical visual changes
Wear & Friction Tested
Wear testing helps show how the belt surface performs under repeated contact and friction. Lower wear volume means less material loss during the test.
0.42–0.50
Friction Coefficient
0.022–0.037 cm³
Wear Volume
Laboratory Test Reports
| Test | Standard | Result | Report |
|---|---|---|---|
| Tensile Strength / Elongation | ASTM D638-22 | Tested / Passed | View Report |
| Heat Aging | ASTM D573-04 | No cracks, no deformation after 100°C / 48h | View Report |
| Wear / Friction | SGS test standard | Tested | View Report |
FAQ
Are UDC Parts belts ASTM D638-22 tested?
Yes. Selected UDC Parts mower belts were independently tested by SGS according to ASTM D638-22 for tensile strength and elongation.
What does ASTM D638-22 measure?
ASTM D638-22 measures tensile properties, including force at break and elongation at break.
How can I view the laboratory test reports?
All available laboratory reports can be viewed and downloaded directly from this page. Each report includes detailed testing methods, measured results, and laboratory verification.
Which laboratory reports are available?
Available laboratory reports include: NBIN2504001056PL01, NBIN2504001056PL02, NBIN2504001056PL03, NBIN2504001056PL04, NBIN2504001056PL05, NBIN2504001056PL06, NBIN2504001056PL08, NBIN2504001056PL13, NBIN2504001056PL14, NBIN2504001056PL15, NBIN2504001056PL17, NBIN2504001056PL18, NBIN2504001056PL19, NBIN2601000290PL03, NBIN2601000290PL04.
Do these laboratory tests apply to every UDC Parts belt?
The published reports cover representative belt models from our product range and verify the quality of materials and manufacturing standards used across UDC Parts belts.