
SKF PHF TB5040STX140MM taper bushings and components
- Brand
- SKF
- Category
- Power transmission
- Subcategory
- Taper bushings and components
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
SKF PHF TB5040STX140MM is a reference of taper bushings and components, within Power transmission. Request a quote for PHF TB5040STX140MM via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF taper bushings from the PHF TB STX MM line are power transmission components that allow pulleys, gears or couplings to be fixed to cylindrical shafts through a conical friction fit. They are used in equipment where torque must be transmitted without machining keyways or using set screws. MR Accesorios Industriales sells this line as part of its power transmission catalog.
The designation of these bushings combines the prefix PHF TB with a four-digit number and the suffix STX followed by the shaft size in millimeters. For example, PHF TB2517STX65MM indicates a bushing for a 65 mm shaft, while PHF TB5040STX140MM corresponds to a 140 mm shaft. The intermediate digits define the construction size of the bushing: the higher the number, the larger the outer diameter and torque capacity. The MM suffix confirms that the dimensions are in the metric system, unlike the inch versions.
These bushings are used in a wide variety of industries in Argentina, such as food, chemical, mining and metallurgical. They are common in belt conveyors, mixers, centrifugal pumps, industrial fans and machine tools. Their design allows pulleys or gears to be mounted and dismounted without hydraulic presses, which simplifies plant maintenance. They are also used in equipment where space is limited and firm, concentric fastening is required.
To select the right bushing, take into account the shaft diameter, the torque to be transmitted and the dimensions of the pulley or gear hub. Mounting is done by cleaning the conical surfaces, applying the tightening torque recommended by the manufacturer and checking alignment between shaft and hub. Lubricating the thread and cone facilitates later disassembly. Respecting concentricity is essential to avoid vibrations and premature wear of bearings and seals.
As for equivalences, SKF taper bushings from the PHF TB STX MM line are interchangeable with other brands that follow the same metric dimension standard. However, each manufacturer may have variations in material or surface treatment. Therefore, when replacing a bushing, always check the shaft and hub dimensions, and consult the compatibility tables.
If you need a quote for an SKF PHF TB STX MM taper bushing, write to us on WhatsApp with the exact product code and the required quantity. At MR Accesorios Industriales we help you identify the correct part and answer any technical questions about its application.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the STX suffix mean on an SKF PHF TB bushing?
- The STX suffix indicates that the bushing has a specific design with metric dimensions and a screw fastening system. It is part of the SKF nomenclature to identify the series and the type of mounting.
- How do I know what bushing size I need for my shaft?
- You must measure the shaft diameter in millimeters and check the bushing code. For example, if your shaft is 65 mm, the code ends in STX65MM. Also consider the torque and the hub dimensions.
- Are SKF PHF TB STX MM bushings compatible with other brands?
- Yes, in general they are interchangeable with bushings from other brands that follow the same metric standard. But always check the dimensions and consult us with the code to ensure compatibility.

