SKF PHF SK-7/8 taper bushings and components
- Brand
- SKF
- Category
- Power transmission
- Subcategory
- Taper bushings and components
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Description
SKF PHF SK-7/8 belongs to taper bushings and components, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for PHF SK-7/8 and any equivalents.
The SKF PHF SK taper bushing is a keyless fixing element that secures pulleys, gears, couplings, and similar components onto cylindrical shafts. Its tapered outer surface creates a tight, centered grip when the bushing is drawn into the mating hub with screws, so installation and removal do not require a press or force fitting. This makes it a practical choice for power transmission assemblies in industrial machinery.
Reading the part number: PHF denotes the SKF taper bushing family, SK specifies the mounting style, and the following figure is the nominal bore in inches. For instance, PHF SK-1 fits a 1-inch shaft, and PHF SK-1-1/2 fits a 1 1/2-inch shaft. Fractional suffixes allow you to match the exact shaft diameter. This coding lets maintenance and purchasing staff identify the correct bushing quickly from a drawing or existing part.
Typical uses include mounting pulleys in belt drives, gears in gearboxes, and couplings on pumps and fans. The bushing transmits torque without slipping, which suits medium and high-power applications. It is found in food processing, chemical, mining, and general manufacturing plants.
Selection depends on the shaft diameter and the dimensions of the hub to be mounted. Before installation, check that the bushing taper and the component bore are clean and free of burrs. Tighten the screws gradually in a cross pattern to the recommended torque for even seating. Lubricating the screw threads and using lock washers help prevent loosening. Proper alignment between shaft and component extends the service life of the assembly.
SKF PHF SK bushings can interchange with taper bushings of similar standards from other manufacturers, but always verify exact dimensions and tightening torque because these can differ. To replace an existing bushing, compare the part number and measure the shaft and component bore. Since designations are not universal, confirm dimensional compatibility before ordering.
For assistance with an SKF PHF SK taper bushing, send the part number or your shaft and hub dimensions via WhatsApp or email. Our team can suggest equivalents and help you choose the right model for your application.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the number in the PHF SK-… designation mean?
- The number indicates the nominal shaft diameter in inches. For example, PHF SK-1 is for a 1-inch shaft and PHF SK-1-1/2 for a 1 1/2-inch shaft. Fractional suffixes allow adjustment to specific sizes.
- How is an SKF PHF SK taper bushing mounted?
- Clean the surfaces, insert the bushing into the component, and bolt it in a cross pattern gradually up to the recommended torque. This ensures a firm, centered fit. To remove it, loosen the screws and extract the bushing.
- Are they interchangeable with bushings from other brands?
- They may be compatible with bushings of similar standards, but it is crucial to verify the exact dimensions and tightening torque, since they can vary. Always compare the part number and dimensions before replacing.