Are you a proud owner of a belt-driven turntable?
If so, you may have noticed that the rubber belt loses its elasticity over time, which can affect the quality of your music.
So, how do you measure the size of your turntable belt to ensure it’s tight enough?
In this article, we’ll guide you through the process of measuring your turntable belt and help you find the perfect replacement belt for your record player.
Whether you’re a seasoned audiophile or a beginner, this article will provide you with all the information you need to keep your turntable running smoothly.
So, let’s dive in and discover what size turntable belt you need!
What Size Turntable Belt Do I Need
When it comes to finding the right size turntable belt, there are a few things you need to consider.
Firstly, it’s important to note that standard turntable belts are 5mm wide and 0.6mm thick, and range in diameter from 60mm to 292mm. These belts are designed to fit a variety of turntable brands, particularly those popular in the 70s like Akai, Aiwa, Denon, Hitachi, Kenwood, JVC, Marantz, Panasonic, Pioneer, Technics, Sanyo, Sansui, Sharp, Toshiba and Yamaha.
To determine the correct size belt for your turntable, you’ll need to measure the diameter of the subplatter. The subplatter is the cylindrical section on the underside of the platter that the belt goes around. On some turntables it is a separate item and the platter lifts off it. With many turntables it is like this photo where there is a raised cylinder on the underside of the platter. You’ll need to lift the platter off and turn it over.
Measure the diameter (the distance across not around) of the subplatter. This will usually be in the range of 140mm to 210mm. Then choose the belt size just below your measurement. For example, if your diameter is 198mm, choose a 195 belt.
If you’re unsure about which belt size to choose or if your turntable isn’t listed in our standard sizes, don’t worry! You can use our free belt matching service by sending us an email with your existing belt’s type (flat, round or square), measurements specifically its length and width, and present working condition (e.g., stretched but still working or no longer working). Please include the make and model of your turntable with the belt’s measurements.
Understanding Belt-Driven Turntables
Belt-driven turntables are a popular type of record player that use a belt to rotate the platter. The platter is the part that holds your records and the belt connects the platter to a motor installed off to the side of your turntable. When the motor starts, the belt runs through a pulley on the motor, around the platter, and back, spinning the platter so that your records can play.
It’s important to note that rubber belts lose their elasticity over time, which is why it’s crucial to measure your turntable belt periodically and replace it when necessary. To measure the belt of a turntable, you can measure the motor, full platter decks, or split platter decks. Deduct a few millimeters from your final measurements to ensure that the belt is tight enough.
When it comes to determining how a turntable belt should fit, it’s essential to strike a balance between grip and tension. A drive belt needs to be sufficiently tight enough to grip the sub-platter of your turntable with little strain. It should be tiny enough to stay on the rim when turned upside down without sliding off, but not so tight that it puts too much sideways pressure on the motor bearings.
If you obtain a belt that is excessively tight, you risk interfering with the operation of the turntable by putting too much pressure on the pulley and platter. If it’s too loose, it won’t provide enough grip to rotate the platter correctly. Therefore, it’s crucial to select the correct size belt for your turntable and ensure that it fits snugly without being too tight or too loose.
In general, tighter belts have fewer deviations and vibrations, and the best belts have been made to have a uniform thickness. Vibrations are transmitted to the platter via the rubber belt as a tune plays, and vibrations should be best kept within the belt. Additionally, when it comes to speed, belt thickness is an issue. The belt’s effective working circumference is not on the inside or outside but in the middle. However, large variances should not be caused by incorrect belt thickness.
It’s important to note that some newer turntables have a direct drive design where instead of a motor attached to a belt, the motor is attached directly to the turntable platter. Direct drive turntables are popular with DJs who like quick response time and more consistent turntable speeds. However, most new turntables sold for home usage have belt drives as they don’t require a lot of platter manipulation or knowledge about speed or motor settings.
Signs Your Turntable Belt Needs Replacing
Knowing when to replace your turntable belt is crucial to maintaining optimal sound quality and performance. Here are some signs that indicate it’s time to replace your turntable belt:
1. Pitchy sound: If you notice that the sound of your records becomes pitchy or distorted, it could be a sign that the belt is slipping. This happens when the belt stretches or wears out, causing the platter to rotate at an inconsistent speed.
2. Slow start-up: If your turntable takes longer than usual to start up or if the platter appears to be spinning too rapidly, it could be a sign that the belt is worn out and needs to be replaced.
3. Visible wear and tear: Inspect your belt every six months to a year for signs of wear and tear. Look for cracks, shiny or glossy areas, or any other abnormalities in the rubber material. If you notice any of these signs, it’s time to replace your belt.
4. Frequency of use: The frequency with which you use your turntable can also affect how often you need to replace the belt. If you use your turntable every day for several hours, you may need to replace the belt more frequently than someone who only uses it occasionally.
5. Age of the belt: On average, turntable belts should be replaced every 3-5 years, depending on usage and environmental factors. If your belt has been in use for longer than this, it’s time to consider replacing it.
Replacing your turntable belt is a simple process that can greatly improve the sound quality of your records. By keeping an eye out for these signs and replacing your belt as needed, you can ensure that your turntable continues to perform at its best.
Measuring Your Turntable Belt
If you need to measure your turntable belt, there are a few things to keep in mind. Rubber belts lose their elasticity over time, so it’s important to measure them accurately to ensure the replacement belt is tight enough.
To measure the belt of your turntable, you can measure the motor, full platter decks, or split platter decks. However, it’s recommended to deduct a few millimeters from your final measurements to ensure that the belt is tight enough. Measuring the old belt is also an option, but it may not deliver accurate results.
Another option is to use a piece of string to tightly follow the belt’s path and measure its length. If you do not have the turntable belt or it is shredded, state the type of belt that the turntable uses (flat, round or square). Measure the width between the rims of the motor pulley that the belt can pass through without obstruction.
It’s important to include the make and model of your turntable with the belt’s measurements. This will help us match you with the perfect replacement belt for your record player. If for some reason it is the wrong size, we offer a 100% money-back guarantee on our turntable belts. You can simply post it back and we will swap it for the correct one.
Finding The Right Replacement Belt
When looking for a replacement turntable belt, it’s important to find the right size to ensure optimal performance. The first step is to measure the diameter of the subplatter on your turntable. This can usually be done by lifting the platter off and turning it over. Measure the diameter (the distance across not around) of the subplatter, which will typically be in the range of 140mm to 210mm.
Next, choose a belt size just below your measurement. For example, if your diameter is 198mm, choose a 195 belt. It’s important to note that standard turntable belts are 5mm wide and 0.6mm thick, and range in diameter from 60mm to 292mm. These belts are designed to fit a variety of turntable brands, particularly those popular in the 70s like Akai, Aiwa, Denon, Hitachi, Kenwood, JVC, Marantz, Panasonic, Pioneer, Technics, Sanyo, Sansui, Sharp, Toshiba and Yamaha.
If your turntable isn’t listed in our standard sizes or if you’re unsure about which belt size to choose, don’t worry! You can use our free belt matching service by sending us an email with your existing belt’s type (flat, round or square), measurements specifically its length and width, and present working condition (e.g., stretched but still working or no longer working). Please include the make and model of your turntable with the belt’s measurements.
Remember that a balance is best when it comes to determining how a turntable belt should fit. A drive belt needs to be sufficiently tight enough to grip the sub-platter of your turntable with little strain while not putting too much sideways pressure on the motor bearings. If you obtain a belt that is excessively tight or too loose, you risk interfering with the operation of the turntable.
Installing Your New Turntable Belt
Once you have determined the correct size turntable belt for your record player, it’s time to install it. Here’s a step-by-step guide to help you get started:
1. First, remove the old belt carefully. This can usually be done by gently pulling it off the subplatter and motor pulley.
2. Next, stretch the replacement belt over the center hub of the platter. Make sure it fits snugly in the center of the circle and is smooth throughout without any areas where it twists or bunches up.
3. If your record player has access holes, stretch the belt onto the small peg or post that sticks up from the edge of the platter. If not, line up the replacement belt with the access holes in the platter.
4. Once the belt is in place, turn the platter over and rotate it by hand to ensure that the belt is running smoothly and not slipping or rubbing against anything.
5. Finally, test your record player by playing a record to ensure that everything is working correctly.
It’s important to note that if your turntable has a tension adjustment, you may need to adjust it after installing a new belt to ensure that it’s not too loose or too tight. Additionally, if you’re installing a new belt because your old one was stretched or worn out, it’s a good idea to clean any dirt or debris from the subplatter and motor pulley before installing the new belt.
By following these steps and taking care when installing your new turntable belt, you’ll be able to enjoy your records with optimal sound quality and performance.
Maintaining Your Turntable Belt For Optimal Performance
Once you have the correct size turntable belt, it’s important to maintain it for optimal performance. Rubber belts can lose their elasticity over time, which can affect the sound quality of your turntable. Here are some tips for maintaining your turntable belt:
1. Keep it clean: Dust and debris can accumulate on the belt, causing it to slip or wear out faster. Use a soft cloth or brush to gently clean the belt, taking care not to stretch or damage it.
2. Check the tension: The belt should be tight enough to drive the platter without slipping, but not so tight that it puts undue stress on the motor or other components. Use a belt tension gauge or simply press down on the belt with your finger to check the tension.
3. Replace worn belts: If your belt is cracked, stretched, or otherwise damaged, it’s time to replace it. A worn belt can cause speed fluctuations, distortion, and other issues that can affect the sound quality of your turntable.
4. Store it properly: When not in use, store your turntable with the belt removed to prevent stretching or deformation. Keep the belt in a cool, dry place away from direct sunlight and heat sources.
By following these simple tips, you can ensure that your turntable belt lasts longer and performs at its best. With proper maintenance, you can enjoy high-quality sound from your vinyl collection for years to come.
