The Armstrong 9975000-987 is designed for 53.9 mm shaft applications. It features a Antimony Carbon (ANT CAR) rotary face paired with a Silicon Carbide (SIC) stationary face. This product uses NBR (NITRILE) elastomers. The maximum recommended operating temperature is 120°C. It is a compatible alternative to the Qseals 2C-QPS18ST55-0539-ASN.
| Brand | Armstrong |
|---|---|
| SKU | 9975000-987 |
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Technical specifications
| Category | PARALLEL SPRING |
|---|---|
| Shaft size (D1) | 53.9 mm |
| Rotary face | Antimony Carbon (ANT CAR) |
| Stationary face | Silicon Carbide (SIC) |
| Elastomers | NBR (NITRILE) |
| Rotary Outer Diameter (D3) | |
| Stationary Housing Diameter (D7) | |
| Rotary Working Length (L1) | |
| Stationary Bore Depth (L4) | |
| Temperature Limit | 120 °C |
| Pressure Limit | 25 bar |
Alternatives
These products are direct 1-to-1 replacements for the Armstrong 9975000-987, with superior performance, longer service life and better reliability.
| Brand | SKU |
|---|---|
| Qseals | 2C-QPS18ST55-0539-ASN |
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