How do I find out my frame size?
You can use an online frame size calculator to figure out your frame size. You still need to measure your wrist or elbow, but you can input the data into a calculator and have it automatically determine your frame size. Thanks! Regular exercise and eating healthy can provide perspective on how your body changes as you lose weight.
What does frame size mean on a motor?
Frame size basis. At first glance, the frame size numbering system may seem capricious, but there is some logic to it. For example, the first two digits of a three-digit frame size relate to the shaft height of a foot-mounted (rigid base) motor in quarters of an inch. You can use this value to figure shaft height (D dimension).
How do you find the shaft height of a motor?
For example, the first two digits of a three-digit frame size relate to the shaft height of a foot-mounted (rigid base) motor in quarters of an inch. You can use this value to figure shaft height (D dimension). Just divide the first two digits by four.
How do I know when I am finished with a motor?
If there is a motor that is a close match, you are finished. If not, using the supplied software gearing can be applied to match the motor and load more closely. The program will allow you to print out the results of the move profile and all the calculations performed by the software.
What is the frame size of an electric motor?
Electrical motors NEMA frame dimensions.NEMA Frame DesignationFrame Dimensions (inches)DU56H3 1/25/856HZ3 1/27/856J3 1/25/863 more rows
What diameter is a 48 frame motor?
NEMA T FRAME DIMENSIONSNema SeriesDAA Size422 5/83/84831/256 56H3 1/21/2143T 145T3 1/2
What does the T mean in a motor frame size?
The letter T in a frame size tells you frame number that has been standardized by NEMA so that horsepower, speed, and certain dimensions will be the same for all motors with that frame size. These dimensions include the shaft diameter, shaft height, shaft length, mounting-base dimensions and bolt-hole sizes.
What is the difference between a 48 frame motor and a 56 frame motor?
The main difference between a 48 frame and a 56 frame hot tub pump is that the 48 frame has a smaller motor housing and so the 4 through bolts that fasten the wet end to the motor are closer together on the smaller motor.
What is the difference between 56 and 56H frame?
H — Used on some 56 frame motors, “H” indicates that the base is suitable for mounting in either 56, 143T, or 145T mounting dimensions. J — This designation is used with 56 frame motors and indicates that the motor is made for “jet pump” service with a threaded stainless steel shaft and standard 56C face.
What size is a 56 frame motor?
NEMA FRAMED*H(dia.)563 1/211/32 slot56H3 1/211/32 slot56HZ3 1/2**664 1/813/32 slot37 more rows
What is a motor frame number?
The frame number relates to the “D” dimension (distance from center of shaft to center bottom of mount). For example, in the two-digit 56 frame, the “D” dimension is 3½”, 56 divided by 16 = 3½”.
What does TC mean on motor frame?
• Totally Enclosed Fan Cooled (TEFC) enclosure. • NEMA TC-frame (C-face) and T-frame motors. • Cast iron frame with ribbed design for maximum cooling. • Solid full frame length cast iron mounting feet. • Steel fan cover.
What is a 48 frame motor?
A motor's frame size is a reference to the size of the mounting footprint, shaft diameter, and shaft length. These motors are all frame size 48. In terms of mounting, these motors can replace each other and other motors with the same frame size.
Can I replace a 48-frame spa pump with a 56 frame?
Almost all spa pumps are manufactured in one of two standard frame sizes: 48-Frame and 56-Frame. When replacing your wet end or your motor, you should use an equivalent of the same size, so that the mounting holes on the motor and the wet end align.
What does 56C frame mean?
Machine builder Richard J. Kinch says the "C" in "56C" stands for a flange or faceplate mounting system. The four mounting points are on the face of the motor, where the shaft comes out. This mounting arraignment is very useful.
Can I put a higher HP pump in my hot tub?
If you want to up the water pressure coming from your jets, you can get a hot tub pump with higher horsepower than the unit that you're replacing. HOWEVER, if you do decide to increase the horsepower, you only want to move up in increments (or magnitudes) of . 5 to 1.
How high is a 56 frame motor?
You can figure that a 48-frame motor will have a shaft height of 48 divided by 16, or 3 in. Similarly, a 56-frame motor has a shaft height of 3.5 in. From the 56 frame on up, motors are available in horsepowers greater than those normally associated with fractionals. For example, 56 frame motors go as high as 5 hp.
How to measure 405 frame size?
Just divide the first two digits by four. Thus, a 405 frame (original, U frame, or T frame) has a shaft height of 40 divided by 4, or 10 in. Although no direct inch measurement relates to it, the third digit of three-digit frame sizes is an indication of the motor body's length.
Why are bearing diameters increased?
Bearing diameters also increased to accommodate the larger shaft sizes and heavier loads associated with the higher horsepower. Frame size basis. At first glance, the frame size numbering system may seem capricious, but there is some logic to it.
When did T frames start?
They introduced T frames in 1964 . Original frame size motors (pre-1952) still in existence will need replacement in the near future. And, yes, such motors still operate today. For example, the Panama Canal still uses two motors that have operated as long as the canal itself.
Do specific frame assignments relate to horsepower?
In these motors, specific frame assignments do not relate to horsepower and speed. So, it's possible a particular horsepower and speed combination might exist in three different frame sizes. In this case, it's essential you know the frame size as well as the horsepower, speed, and enclosure type.
Can you replace a motor from one manufacturer with a similar motor from another?
This means the same horsepower, speed, and enclosure will normally have the same frame size from different motor manufacturers. Thus, you can replace a motor from one manufacturer with a similar motor from another, if they are both in standard frame sizes. Thanks to standardization, we have three groups of frame sizes.
1. Moment of Inertia
The manufacturer of servo motors will need to know the force required to move the load. The force to overcome the loads resistance is called Moments of Inertia.
2. Load Torque
Next, you’ll need to determine how much torque the motion application needs. Remember the torque is how much “muscle” it takes to rotate a mechanism, and comes from three different sources:
3. Speed
Moving along we will now define what the application’s motion profile looks like. We will use a servo type motor and use the travel amount calculation method.
What is the NEMA frame size?
NEMA frame size outlines motor footprint and shaft dimensions. The first two numbers represent the shaft height from the mounting base. This number divided by four represents the shaft height in inches. The third number is the bolt mounting hole dimensions, some motors may have multiple holes for different mounting options.
What does CT mean on a motor?
CT stands for Constant Torque and VT stand s for Variable Torque. If these ratings are on your motor nameplate it typically means your motor is rated for inverter use. Consult your manual for more information.
What voltage do industrial motors run?
Motors are designed to run at the voltage listed on their nameplate. Many industrial motors are designed to run at more than one (line power) voltage. For example, many motors are dual rated and are designed to run at 230V and 460V.
What is the difference between starting torque and torque?
A motor’s starting torque is different than torque during normal operations. For example, two motors with similar running torque ratings may have very different starting torque ratings. A motor being used for a centrifugal fan is likely to have different starting torque requirement than a conveyor belt.
What is AC motor starting current?
AC motors that are started at full voltage will draw a greater current (amps) than during normal operations. This is commonly referred to as inrush current or starting current. These codes represent a range of inrush current.
What is the insulation class of a motor?
The insulation class describes a motor’s ability to withstand temperatures over time. B, F, and H are commonly used insulation types. Letters occurring later in the alphabet represent insulation that is better able to withstand temperature. So class F can withstand temperature better than a class B.
Do you need the nameplate information for a VFD?
You will need information from the motor nameplate throughout the life of the motor. If you ever need to size a VFD, repair a motor, replace a motor, connect a motor, correct power factor, purchase parts, or do just about anything with a motor you will need the information on the motor nameplate. Horsepower.
How to measure your frame size?
To measure your frame size with your wrist, wrap a tape measure snugly around your wrist and write down the measurement. If you’d rather measure your elbow to figure out your frame size, bend your arm at a 90-degree angle so your forearm is perpendicular to the ground.
How to measure your wrist?
1. Wrap a tape measure around your wrist (right or left). Take the end of your tape measure and bring it all the way around your wrist. [1] X Trustworthy Source MedlinePlus Collection of medical information sourced from the US National Library of Medicine Go to source. ...
Can you gain weight with a large frame?
If you naturally have a large frame, certain parts of your body, such as your shoulders, will remain relatively large no matter how much weight you lose. If you naturally have a small frame, you will feel the effects of weight gain relatively faster than someone with a medium or large frame. Thanks!
How to measure bike frame length?
Measure the bike frame’s top tube length. Place the tip of a tape measure against the center point of the head tube, where it intersects with the top tube. Measure along the top tube to the center point of the seat tube and find the length in centimeters.
How to measure a road bike frame?
However, road bike frame sizes are always given in centimeters. Multiply the number of inches by 2.54 to find the length in centimeter s. Say that the length of the seat tube is 22 inches long. Multiply this by 2.54, which 56.5 cm.
How to shorten inseam on a road bike?
Multiply your inseam length by 0.7 if you’re buying a road bike. If you bought a bike whose seat tube was the exact same length as your inseam, you’d have a very hard time pedaling the bike! So, multiply by 0.7 to shorten the inseam measurement if you’re planning to ride a road bike.
How to measure bike seat tube?
Place the end of a tape measure at the exact center point of the gear crank (the metal post that runs through the center of the bike’s chain sprocket). Then run the tape measure up to the top of the tube. Measure to the point where the tube ends. This will give you the length of the seat tube which is the frame size.
How to measure a mountain bike?
Whatever measurement you get is the frame size. If you're measuring a mountain bike, measure in inches. If you're measuring a road bike, measure in centimeters instead. For advice on how to choose the right size bike, check out the full article!
How to measure crotch?
Move your feet apart so they’re separated by about 6–8 inches (15–20 cm) of space. Use your tape measure to find the distance from the ground to your crotch in centimeters.
Where is the head tube on a bicycle?
On a bicycle frame, the head tube connects the handlebars to the top of the fork. (The fork is the split piece of metal that connects to the center of the front wheel.) Set the end of your tape measure or ruler against the top of the head tube at the point where it intersects with the handlebars.
Where is the motorcycle VIN number located?
Motorcycle VINs are usually stamped into the steering neck of the motorcycle. This is located just behind the front forks, behind the headlight (if equipped). Kawasaki Motorcycle VIN Location – This Kawasaki KLX140 VIN is stamped into the steering neck. Suzuki Motorcycle VIN Location – This Suzuki RMZ-250 VIN is stamped into the steering neck.
What does the second character mean on a motorcycle?
The second character, when combined with the first character denotes which country the motorcycle was manufactured in. It’s not uncommon to find a BMW motorcycle made in Mexico or a Japanese ATV made in Canada. The third character is used by powersports manfacturers to identify the vehicle type.
