SKF Bearing Assist vs Fit Tolerance ISO Usage & Stats
SKF Bearing Assist helps you to ensure quick, correct and easy mounting of bearings by guiding you step-by-step through the whole process.
Always have access to the right information. Simply scan the barcode on the packaging or use the bearing search. The app enables you to find suitable bearings for your repair jobs as well as keeping track of them.
• Search by designation, dimensions or bearing type
• Visual mounting instructions with calculations for drive-up and clearance reduction
• Prepare your mounting with the right tools and equipment
Creating free account to work together with your maintenance team, save and share mounting details and history directly in the app.
• Create teams and invite colleagues
• Track mounting history on your assets
• Use checklist to document mounting procedure
• Share notes and photos for easy handover of jobs at any time
• Create mounting reports in no time
• Share PDF reports by email or other sharing apps
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Limits, fits and tolerances calculator has been developed to calculate engineering tolerances of inner and outer features of journal bearings, linear bearings, thrust bearings, bushings, ball bearings, roller bearings, housings, cylinder bores, drilled holes, linear and precision shafts, pistons, etc.
The calculator works in line with ISO 286-1 (2010), ISO 286-2 (2010) and ANSI B4.2 (1978) standards which are based on metric units. According to the input parameters of nominal size and hole/shaft tolerances, size limits and deviations for hole/shaft are calculated and fit type is selected among the clearance, transition and interference fits.
The schematic representation of the fit is also drawn. The preferred tolerances and fits advised by ISO and ANSI standards can be found in the "Supplements" section.
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SKF Bearing Assist VS. 
Fit Tolerance ISOJanuary 15, 2026