SKF
Overview (Bushing Selection)
This overview introduces the selection path for SKF bushings, thrust washers, and strips. It outlines the steps: analysing application loads and motions, picking the sliding material from SKF’s extensive composite portfolio, determining the bushing size based on static load capacity and pv limits, ensuring machinability if custom dimensions are required, and finalising mounting and clearance details. The overview equips engineers with the context needed to use SKF selection tables and charts, which are built on decades of plain bearing testing and field data. The result is a reliable, self-lubricating bearing solution.
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Application‑First Approach
Load, speed, and motion type define the bushing material and geometry.
Life Without Lubrication
Composite bushings eliminate the need for grease systems.
Space and Weight Savings
Thin‑wall construction maximises load capacity in minimal volume.
Corrosion‑Free Operation
Polymer‑based materials never rust, ideal for water and chemicals.
Customizable Dimensions
Strips and machined bushings adapt to any shaft size.
Total Cost Reduction
Fewer parts, no grease, and longer life lower the overall system cost.
Why Bushings Often Replace Rolling Bearings in Hydraulic Cylinders
A rolling bearing requires precise alignment, seals, and lubrication. A composite plain bushing slides directly on the pin, tolerating misalignment, edge loads, and dry operation. This simplicity reduces pivot weight by up to 40% and manufacturing cost by over 50%, making it the dominant choice for cylinder attachments.
The Bushing Selection Digital Assistant
SKF’s online Bushing Select asks for shaft diameter, load, and motion type, then instantly recommends the correct material and wall thickness. This tool embodies the selection logic of the overview and helps junior engineers specify maintenance‑free pivots without specialist knowledge.