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MOI instruments
• All MOI instruments
• GB Series (MOI of large parts)
• XR Series (MOI of mid size parts)
• XKR Series (MOI of small parts)
• KSR Series (MOI and CG)
• MP Series (MOI, CG and weight)
• POI Series (POI, MOI and CG)

Know-How
• Selecting the right instrument
• Why measure Moment of Inertia
• Principle of Operation of an MOI Instrument
• Torsion Pendulum Theory
• Find MOI through CG without knowing the CG location

MOI of golf club heads
• Comply with the USGA ruling on MOI
• Use an XR10 to measure MOI
• Optimize club head design

Other Measurements
You may also be interested in measuring:
• Center of Gravity
• Product of Inertia

Refurbished Machines
• CG and MOI
• Spin Balance Machine
• Center of Gravity


MOMENT OF INERTIA INSTRUMENTS 
XR SERIES

 

             Model XR-250

XR250 - moment of inertia instrument The XR series instruments are designed to measure Moment Of Inertia (MOI) over a wide range of test part weight.

Three standard models are available for test parts with MOI's as small as 0.002 lb-in2 up to parts weighing 250 lbs. with accuracy of 0.25%. In addition to its use as a design tool, this instrument is fast enough for use in line for production quality analysis.

Most rotating machinery and all space vehicles require the calculation of Moment of Inertia of components and complete assemblies. XR10 - moment of inertia instrument While these calculations have become faster and more accurate through the use of computers, the exact value and extent of manufacturing variations cannot be known without making measurements.

Space Electronics XR Series instruments measure the MOI of any object regardless of its size or shape in a fraction of the time required for the MOI calculation and permit rapid accumulation of data for variation analysis.

MODEL

Payload Capacity (lbs.)

Overturning Moment
(lb.-in)

Maximum
CG Height
(part wt@CG height)

Tare MOI
(lb-in2)

MOI Accuracy
(% of reading + lb-in2)

Shipping Weight
(lb.)

XR10

10

15

10 lb. @ 10"

0.014

0.25% + 1x10-5

50

XR50

50

130

50 lb. @ 20"

0.4

0.25% + 2.5x10-4

380

XR250

250

750

220 lb. @ 40"

6.0

0.25% + 1x10-3

400

For payloads of different sizes you may consider:
   • GB series for larger payloads (including fixture)
   • XKR series for very accurate measurement of small payloads



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Space Electronics LLC - 81 Fuller Way - Berlin, CT 06037 (USA) - Phone: +1 860 829 0001 - Fax: +1 860 829 0005 - Email: sales@space-electronics.com