SKF PGR25X21.9X4-PF — Hydraulic guide ring / wear ring / bearing strip
SKF · Seals & Gaskets · Hydraulic Guide Rings & Strips
SKF PGR25X21.9X4-PF hydraulic guide ring / wear ring / bearing strip. Non-sealing polymer guide ring that carries the side load in a hydraulic cylinder, preventing metal-to-metal contact between rod-piston-tube. Materials cover PTFE with bronze filler, glass-filled thermoplastic and acetal. Available as straight-cut or angle-cut strip; standard groove per ISO 10766. Designation follows the SKF alphanumeric identification convention where the numeric block encodes the boundary plan and the suffix declares execution options (material, sealing, cage, precision, clearance, lubricant). Genuine SKF supply carries the SKF logo etch or moulded mark and hologram-authenticated packaging.
Specifications
- Part number
- PGR25X21.9X4-PF
- HS code
- 3926.90
- Material
- As declared by SKF designation suffix
- Temperature range
- Per SKF product data
- Standard
- SKF designation convention (see description for governing ISO / DIN)
Compatibility
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.
Also known as — OEM cross-references & superseded numbers
- Trelleborg 252194
- Parker 252194
- Freudenberg 252194
- Hallite 252194
- Competitor equivalent: 252194 (Trelleborg)
- Competitor equivalent: 252194 (Parker)
- Competitor equivalent: 252194 (Freudenberg)
- Competitor equivalent: 252194 (Hallite)
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