ENGINEER.48
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How to calculate torque from kW (rated output) of motor
2025/8/23 Motor
Here is a note on "How to calculate torque from kW (rated output) of a motor", knowledge that is sometimes necessary when selecting a motor. When designing a machine, power is sometimes expressed in kW ...
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The following is a summary of ball screw materials from each manufacturer for your reference.
2024/1/20 Ball screw
Today's note is about "Ball Screw Material Summary of Each Maker". The other day, I had a chance to use Power Lock for THK's ball screw (shaft end), and at that time, I needed to check the material (strength) of the ball screw shaft.
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Anti-resonance/vibration couplings
2020/5/2 coupling
Today's note is about "anti-resonance/vibration couplings". Many of you already know about this, but I thought it was "great" again at a recent job I was involved in, so I thought I would share it with those who are suffering from resonance/vibration in equipment that handles servos, and especially those ...
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Calculation of approximate circumference of timing belt and distance between shafts
2020/7/26 timing belt
Today's note is on "Calculation of Approximate Circumference and Distance Between Shafts of Timing Belts". This is a formula that you can use when you assume the distance between shafts of a timing belt during the design process. In addition, this article is about "Calculating the approximate circumference and axial distance of a three-star belt (tie ...
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Machined parts after welding, flat machining near a wall is basically no good unless it is away from the wall.
2025/11/13 Welding
Today's note is "The basic rule of thumb is that machined parts after welding and flat machining near a wall must be away from the wall. I'm not sure if this title is appropriate and communicates well, but this is what I was inquired about by a machinist, and I told the design engineer and ...
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Thrust force table and formula for hydraulic cylinders
2020/9/9 Security
Today's memo is about "Thrust Force Table and Thrust Force Formula for Hydraulic Cylinders". Unlike air cylinders, hydraulic cylinders have a higher pressure setting in the hydraulic circuit used and have a very large thrust force. Today, we will create a table that shows the thrust of the hydraulic cylinder ...
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How to obtain CAD data for THK grease nipples
Today's note is about "How to get CAD data for THK grease nipples". THK Grease Nipples If you download the CAD data for the LM Guide from THK's website, the grease nipples come with ...
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Symbols "Ca" and "C0a" for load rating in THK's ball screw catalog
2024/1/20 Ball screw
今日は「THKのボールねじカタログにある定格荷重の記号「Ca」と「C0a」について」のメモです。この定格荷重の記号の説明がカタログの寸法表に載っていないので混乱する方も多いですのでここにメモしておきま ...
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DCモーターとACモーターの違い。特徴の比較
2025/8/23 Motor
ここでは モーターの種類 である「DCモーターとACモーターの違い。特徴の比較」についてのメモです。 機械設計において駆動関係の選定をする際に、DC・ACどちらのモーターにしようか選 ...
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ボールねじの与圧動トルク計算式
2024/1/20 Ball screw
今日は「 ボールねじの与圧動トルク計算式」についてのメモです。 ボールねじを利用した機械では、機械の種類によって精度の要求度合いが違うため、転造ボールねじでよい機械もあれば精密ボールねじ ...