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Anti-extrusion guiding ring PwP
Anti-extrusion and guide ring PwP
(material: polyacetal POM)
Conditions of use
| PP ring material | Compressive stress at 1% strain σ1% acc. to PN-EN ISO 604:2006 [MPa] | Coefficient of friction on hardened and ground steel (dry) | Designation (color of PwP ring) |
|---|---|---|---|
| POM | 85 | 0.3 | white |
| POM S | 100 | 0.3 | green |
| BK-P | min 140 | 0.3 | black |
Ordering example
PwP Ring 200×195×30 BK-P
Piston version (D × d × W₁)
Piston version (D × d × W₁)
PwP Ring 63×68×10
Rod version (d × D × W¹)
Rod version (d × D × W¹)
Hydraulic medium:
- mineral oils
- oil-water emulsions class HFA and HFB (e.g., Emulkop-EKO, Solcenic 2020, Isosynth, Inwex)
- low-freezing fluids (e.g., Polikon Test, Solcenic 801E)
Comments
- When ordering rings made of materials other than POM, in addition to the dimensional designation, the ring material symbol must be provided according to the symbols in the table above, e.g.: PwP Ring 190×200×30 BK-P.
- It is possible to manufacture sizes other than those specified in the standard range.
| Inside diameter (range of diameters) |
Outside diameter (range of diameters) |
Ring width | Groove width | Ring thickness | ||
|---|---|---|---|---|---|---|
| d | D | W1Ring width range | Typical ring widths | M | GRing thickness range | Typical ring thicknesses |
| 25 ÷ 40 | 5 ÷ 40 | 5 ÷ 10 | 7.5; 10 | W1 = M | 2.5 ÷ 3.1 | 2.5; 3.1 |
| 40 ÷ 80 | 40 ÷ 80 | 5 ÷ 25 | 7.5; 10; 15 | 2.5 ÷ 5 | 2.5; 3.1; 3.75; 5 | |
| 80 ÷ 155 | 80 ÷ 155 | 5 ÷ 30 | 7.5; 10; 15; 20 | 2.5 ÷ 5 | 2.5; 3.1; 3.75; 5 | |
| 155 ÷ 405 | 155 ÷ 410 | 10 ÷ 30 | 10; 15; 20 | 2.5 ÷ 5 | 2.5; 3.1; 3.75; 5 | |