SKF PHF SF-1-3/4 taper bushings and components
- Brand
- SKF
- Category
- Power transmission
- Subcategory
- Taper bushings and components
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Description
SKF PHF SF-1-3/4 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 SF-1-3/4 and any equivalents.
The SKF PHF SF taper bushing secures a hub to a shaft using a tapered fit and a keyway. It transmits torque without requiring any machining of the shaft and allows the assembly to be removed later. Typical uses include pulleys, gears, and couplings in power transmission systems where the component must be centered and held firmly on the shaft.
The code PHF SF covers SKF taper bushings that have a keyway and mounting holes. After the SF- prefix comes the nominal inch size; this is why PHF SF-1, PHF SF-1-1/8, PHF SF-1-1/4, and PHF SF-1-3/4 all exist. A further suffix, such as in PHF SF-1-1/2, denotes a variant of that base size. Always check the full code marked on the bushing before ordering.
You will find these bushings in food processing, cement, mining, and aggregate plants, as well as in drive lines that use pulleys and gears. They also appear in pumping, ventilation, and bulk conveying equipment. Maintenance teams rely on them when the shaft diameter is already fixed and a standard taper fit is needed without additional turning.
Selection starts by matching the shaft diameter to the nominal size in the code and checking the hub taper. The keyway must align with the shaft key. During installation, clean the tapered surfaces, tighten the screws in a cross pattern and in stages, and confirm alignment between shaft and hub. Lubricating the threads and using the correct wrench helps prevent distortion and loosening.
Taper bushings from different brands can often be interchanged by nominal size and taper, but avoid mixing components without verifying the angle and keyway position. The SKF PHF SF reference is a common standard; if the equipment carries a different code, compare critical dimensions before replacing. MR Industrial Accessories supplies SKF as part of its power transmission line.
If you have the bushing code, send it by WhatsApp or email along with the shaft size and a photo of the hub. With that information we confirm the equivalent variant and provide a quote. We can also advise you if the current bushing shows wear or if the complete assembly needs replacement.
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
- How do I determine the correct PHF SF bushing size?
- Measure the shaft diameter at the bushing seat and compare it to the nominal size in the code. The inch suffix, such as 1-1/4 or 1-3/4, indicates that size. If the shaft is worn, use a caliper to verify before ordering.
- Can an SKF bushing be used with a hub from another brand?
- Yes, provided the taper and keyway match. Taper bushings follow standardized dimensions, but it is wise to compare the angle and key position. If unsure, send the hub dimensions and we will help you check.
- What screw torque is required for the bushing?
- Torque depends on the size and the hub manufacturer. Check the equipment data sheet or ask us for the figure along with the bushing code. Under-tightening can loosen the assembly; over-tightening may deform the hub or shaft.