SKF PHP 3-3V280-JA drive pulley
- Brand
- SKF
- Category
- Power transmission
- Subcategory
- Pulleys and V-belts
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Description
SKF PHP 3-3V280-JA belongs to drive pulley, 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 PHP 3-3V280-JA and any equivalents.
SKF PHP series pulleys are designed for 3V profile V-belts and use a JA size QD bushing for shaft mounting. These components transmit power between shafts while maintaining the speed ratio and handling variable loads. They are found in industrial settings where reliability and low maintenance are important, such as fans, pumps, compressors and machine tools. MR Industrial Accessories supplies this line to customers across the United States and in several Latin American countries.
The code on these pulleys follows a simple structure. PHP indicates an SKF pulley for V-belts. The next digit shows the number of grooves: 1 for a single belt, 2 for two belts, and so on. Then comes the belt profile, here 3V, which is a narrow section with high capacity. The number after that is the outer diameter in tenths of an inch. The JA suffix specifies the QD bushing size that secures the pulley to the shaft.
Typical applications include centrifugal fans, centrifugal pumps, screw compressors, conveyors and machining equipment in industries such as food processing, chemical, petrochemical and manufacturing. The design allows power transmission with minimal slip and tolerates small misalignments, which helps reduce wear on belts and bearings.
When selecting a pulley, consider the belt profile (3V), the number of grooves, the pitch diameter needed for the desired speed ratio, and the power to be transmitted. For mounting with a JA QD bushing, clean the shaft and taper thoroughly, apply the recommended tightening torque, and check alignment with the driving pulley. The pulley itself does not require lubrication, but the shaft bearings do. Periodically inspect belt tension and groove wear to prevent vibration issues.
SKF PHP pulleys can be interchanged with other brands that use the same belt profile and QD bushing, as long as the outer diameter and number of grooves match. Interchangeability depends on the belt and bushing standards, not the brand. If you have a part number from another manufacturer, MR Industrial Accessories can identify the equivalent SKF pulley.
To request a quote for SKF PHP 3V-JA pulleys, send the complete part number via WhatsApp or email to MR Industrial Accessories. The team can help you select the right pulley for your application and suggest equivalents to avoid unplanned downtime.
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 JA suffix mean on an SKF PHP pulley?
- The JA suffix indicates the size of the QD bushing used to mount the pulley on the shaft. The QD bushing provides a firm, centered fit and is selected based on the shaft diameter.
- Can I replace a pulley from another brand with an SKF PHP pulley?
- Yes, if the belt profile (3V), number of grooves, outer diameter, and bushing type match. Interchangeability depends on these critical dimensions and the belt standard. Always refer to the complete designation.
- How is the speed ratio calculated with 3V pulleys?
- The speed ratio is the quotient of the pitch diameters of the driving and driven pulleys. For 3V pulleys, the code shows the outer diameter; the pitch diameter is found in the 3V section table. Ensure the belt length suits the center distance.