A wooden turntable transfers payload through a central bearing and frame. This calculator applies two entered derating factors to an entered static bearing rating.
Wooden Frame Turn-table Interactive Calculator
Enter static bearing rating, mounting factor, chosen safety factor and payload. Outputs are static derating arithmetic—not bearing life, eccentric capacity or frame validation.
Equation Used
- Bearing rating is entered as a static central load.
- Mounting factor and safety factor are entered constants.
- Payload is assumed centered and static.
- Gravity conversion uses 0.45359237 kg per pound-force equivalent.
- Bearing life, shock, eccentricity, frame stiffness, fasteners and safety compliance are omitted.
Static-load Comparison
The view places a centered payload above a bearing and exposes both entered derating factors.
What This Represents
User-defined static central-load derating only.
Entered Load Allowance
utilization=100W/L
Worked Scenario
A 500 lb rating, mounting factor 0.6 and divisor 2 give a calculated allowance of about 68.04 kg. A centered 50 kg payload uses about 73.49% of that allowance; this does not verify the bearing or frame.
Assumptions and Limits
No bearing life, impact, off-axis moment, frame deflection, fastener load or code compliance is calculated.
Frequently Asked Questions
Is mount efficiency measured?
No; it is entered.
Is safety factor prescribed?
No.
Are eccentric loads included?
No.
Is bearing life calculated?
No.
Is the wooden frame checked?
No.
Does positive margin prove safety?
No.
References
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