Bearing Tolerances - Timken Engineering tools - bearing fits
500/10000
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500/1000
500 100in simplest form
Manual methods are frequently used to set tapered roller bearing on a variety of equipment with low to moderate volume production requirements whereby a non- exact, primarily end play, setting range variation is acceptable. No special tooling, gauges, charts or fixtures are typically required, but assembler’s skill and judgment are necessary.
500 100fraction
Tapered roller bearings can be set at initial machine assembly to any desired axial or radial clearance.Tapered roller bearings do not require tight control of shaft or housing fits to obtain setting. Tapered roller bearings are mounted in pairs, Tapered roller bearings setting is primarily dependent upon the axial location of one bearing row relative to the opposite row.
Tapered roller bearings can be set at initial machine assembly to any desired axial or radial clearance.Tapered roller bearings do not require tight control of shaft or housing fits to obtain setting. Tapered roller bearings are mounted in pairs, Tapered roller bearings setting is primarily dependent upon the axial location of one bearing row relative to the opposite row. Manual methods: Manual methods are frequently used to set tapered roller bearing on a variety of equipment with low to moderate volume production requirements whereby a non- exact, primarily end play, setting range variation is acceptable. No special tooling, gauges, charts or fixtures are typically required, but assembler’s skill and judgment are necessary. Automated setting: Large equipment or high production tapered roller bearing applications, manual setting may be too troublesome, of inappropriate accuracy and reliability, or too time consuming. The Loyal Company has devised preset bearing assemblies and automated setting techniques as alternatives to manual setting. To determine a suggested ambient bearing setting for a specific application, contact a Loyal sales engineer or representative. TAPERED ROLLER BEARING SETTING METHODS SETTING METHOD Requirements Manual Preset assembly Set-Right Acro-Set Projecta-Set Torque-Set Clamp-Set Mounted bearing setting range, in. (Typical Min to Max) 0.004 – 0.010 0.006 – 0.012 0.008 – 0.014 0.004 – 0.002 – 0.004 0.005 – 0.007 0.003- 0.005 (probable) 0.006 End play or preload End play or preload End play or preload End play or preload End play or preload Mounted setting region End play End play Loose fitted member for adjustment? No No No Yes No No Yes Yes Gauge spring Apply set-up load? Yes No No Yes (constant) Yes Yes (constant) Special gauges, Yes Special gauge Yes Rolling torque Yes Compensating ring fixtures; components? No No No No & LVDT* gauge Special bearing codes or assemblies? Yes “Matched” assembly Yes Codes & spacers No No No No No Pretesting needed to develop method? No No Yes (limited) Yes Yes Yes Yes Low to Moderate Moderate to High Moderate to High Typical production volume Low to High Low to High Low to High Low to High Assembler skill or training level Low-Med Chart reading Low LVDT reading Low-Med Chart/ gauge reading High Low Low Low Yes constant size Shim pack applied? Yes No No Yes Yes Yes No (LVDT) No (brg torque) Shim gap measurement Yes No No Yes No Possible use of wider bearing system mounting tolerances? No Control fit tolerances No Need tighter tolerances Yes Yes Yes Yes Yes Bearing rotation or oscillation? Yes No No Yes Yes Yes Yes Yes (with service manual) Yes (with manual and new brgs) Applicable for field service? Yes Yes Yes No Yes Readily applicable to large, heavy units? No Yes Yes Yes No No No
Large equipment or high production tapered roller bearing applications, manual setting may be too troublesome, of inappropriate accuracy and reliability, or too time consuming. The Loyal Company has devised preset bearing assemblies and automated setting techniques as alternatives to manual setting.
To determine a suggested ambient bearing setting for a specific application, contact a Loyal sales engineer or representative.