SKF PHP4-B56-SD — V-belt pulley (sheave)
SKF · Bearings & Power Transmission · V-Belt Pulleys
SKF PHP4-B56-SD v-belt pulley (sheave). Cast-iron or steel V-belt pulley bored for taper-lock bushing (QD or Taper), with grooves cut to the classical or narrow-section V-belt profile in one, two, three, four or six-groove execution. Manufactured to ISO 4183 / RMA IP-20 / IP-22. Bore is set per the fitted taper bushing designation; pilot-bore variants require final machining before use. 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
- PHP4-B56-SD
- HS code
- 8483.50
- 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Also known as — OEM cross-references & superseded numbers
- Martin Sprocket 456
- Browning 456
- Optibelt 456
- Competitor equivalent: 456 (Martin Sprocket)
- Competitor equivalent: 456 (Browning)
- Competitor equivalent: 456 (Optibelt)
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