Parts of a turntable, in 3D

Take a record player apart piece by piece, see what each part does and what usually breaks, or follow a lesson on the model: set it up, change the stylus or the belt, level it.

Interactive 3D model of a belt-drive turntable

3D model made by VinylAI. No manufacturer's design is shown.

The 22 parts of a belt-drive turntable

Every record player has the same three systems: something that spins the record, an arm that reads it, and a body that keeps vibration out. Tap a name to find the part in the model above.

Drive

What spins the record

A small motor, usually DC or AC synchronous, sits away from the tonearm so its vibration stays out of the signal.

What goes wrong: Hum, or a speed that wanders after warm-up.

The stepped pulley on the motor shaft. On many belt-drive decks you move the belt to the larger step for 45 rpm.

What goes wrong: A dirty pulley lets the belt slip.

A rubber band that carries the motor's rotation to the subplatter while filtering out motor vibration.

What goes wrong: Belts stretch and harden with age. Slow or drifting speed is the classic sign.

The inner hub the belt wraps around. The heavy platter sits on top of it.

What goes wrong: Oil or dirt on its rim makes the belt slip.

The heavy disc that turns the record. Its mass smooths out tiny speed changes, heard as wow and flutter.

What goes wrong: A bent platter or a dry bearing shows up as wobble or rumble.

Felt, rubber or cork between platter and record. It grips the record and damps ringing in the platter.

What goes wrong: Dust collects in felt and ends up on your records.

How to clean a turntable →

The pin that centres the record. Below it sits the main bearing the whole platter spins on.

What goes wrong: A dry bearing adds rumble.

Switches between 33⅓ and 45 rpm, electronically or by moving the belt on the pulley.

What goes wrong: Wrong speed changes pitch and tempo. Check it with a strobe disc.

Tonearm and cartridge

What reads the groove

Carries the cartridge across the record on a pivot. It has to move freely while holding the stylus steady in the groove.

What goes wrong: A sticky bearing makes the stylus skip or mistrack.

Holds the arm's bearings. On adjustable arms it also sets arm height, which changes the stylus angle in the groove.

What goes wrong: Loose mounting adds buzz and mistracking.

Balances the arm and sets tracking force, the downward pressure on the stylus, measured in grams.

What goes wrong: Too light skips, too heavy wears records faster.

Tracking force explained →

Pushes the arm gently outward against the pull toward the centre, so both groove walls wear evenly.

What goes wrong: Set wrong, one channel distorts more than the other.

Lowers and raises the arm slowly, so the stylus never drops onto the record.

What goes wrong: The damping fluid dries out and the arm falls too fast.

Holds the arm when the deck is off, usually with a clip for moving the turntable.

What goes wrong: Moving the deck without the clip can bend the cantilever.

The end of the arm that holds the cartridge. Some unplug from the arm, others are fixed.

What goes wrong: Loose screws or oxidised contacts drop a channel.

Turns the stylus's tiny movements into an electrical signal. Moving magnet is the common type; moving coil has a lower output.

What goes wrong: Misalignment causes distortion near the end of each side.

The diamond tip that rides in the groove. It wears with play time, and many cartridges take a plug-in replacement.

What goes wrong: A worn tip sounds harsh on loud passages and can damage records.

When to replace a stylus →

Body

What holds it all still

The base that holds everything. Its mass and damping keep motor noise and footsteps away from the stylus.

What goes wrong: Resonance shows up as hum or feedback at high volume.

Isolate the deck from the furniture. Adjustable feet are how you level the turntable.

What goes wrong: An unlevel deck pulls the arm to one side.

How to level a turntable →

Keeps dust off the platter, mat and arm.

What goes wrong: Best kept closed whenever the deck is not in use.

Hold the lid open at any angle with spring tension.

What goes wrong: Springs weaken over the years and the lid starts to drop.

Send the signal to your amplifier. A cartridge signal needs a phono preamp, built in or separate, before a normal line input.

What goes wrong: Plugged into a line input without a preamp, it sounds thin and quiet.

Belt drive or direct drive?

The model above is belt-driven. The other common design puts the platter straight on the motor.

Belt drive

  • The motor sits off to the side and turns the platter through a rubber belt.
  • The belt soaks up motor vibration before it reaches the record.
  • The belt wears out and gets replaced every few years.
  • Most home and budget hi-fi turntables work this way.

Direct drive

  • The platter sits on the motor itself, with no belt in between.
  • It reaches full speed quickly and holds it under a DJ's hand.
  • There is no belt to wear out.
  • DJ decks and many classic Japanese turntables use it.

Step-by-step lessons

Each lesson plays out on the model, one step at a time. Tap a card to start it.

Replace the stylus: the 5 steps as text
  1. Park the arm. Stop the platter and switch the turntable off. Lift the arm with the cue lift, set it on its rest and close the clip, then fit the stylus guard if it has one. Why: You are about to pull on the cartridge. A clipped arm cannot swing into the platter while you do. Tip: Work in good light, with the deck at the front of the shelf so you can reach the cartridge straight on.
  2. Pull the old stylus out. Hold the cartridge body still with one hand. With the other, grip the plastic body of the stylus, not the thin cantilever, and draw it forward out of the front of the cartridge. On many suitcase decks you press the front edge down first and then pull. Why: A plug-in stylus is held only by friction or a small catch. Pulling straight out along the cartridge keeps the force off the arm and its bearings. Tip: Your manual has a drawing of this exact move. If it does not come out with a gentle pull, look again before you pull harder. When to replace a stylus →
  3. Slide the new one in. Line the new stylus up with the slot in the front of the cartridge and push it straight in until it sits flush, or until it clicks on types with a catch. Leave its guard on. Why: A stylus that is not fully home sits at the wrong angle in the groove. That can sound thin, or louder on one side than the other. Tip: Fit only the stylus your cartridge or turntable maker names as the replacement. Each model page lists that part number and links to the maker's own page.
  4. Check the tracking force. If your arm has a counterweight and the new stylus is a different model (an upgrade, say), set the tracking force its maker gives. A like-for-like replacement keeps the setting you had. Why: Each stylus is designed for a range of force. Too little and it skips; too much and it wears records and itself faster. Tip: Decks without a counterweight have the force set at the factory. There is nothing to adjust. Tracking force explained →
  5. Play and listen. Take the guard off, put on a record you know well and lower the arm with the cue lift. Listen for both channels and for clean loud passages. Why: A familiar record is the quickest test: you know how it should sound. Tip: Write down the date. Stylus life is counted in hours of play, and the date is how you will estimate them later.
Replace the drive belt: the 6 steps as text
  1. Lift off the mat. Switch the turntable off and unplug it. Lift the mat off the platter. Why: The belt sits under the platter, so everything above it has to come off first. Tip: Lay the mat face up on a clean surface so it does not pick up dust.
  2. Lift off the platter. Hold the platter by its rim with both hands and lift it straight up off the spindle. Why: Tilting it on the way up can scrape the spindle and the bearing the platter turns on. Tip: On many budget decks the belt runs round the inside of the platter itself, not a separate subplatter. Then it comes off with the platter, and the new one goes on through an opening in the platter.
  3. Take off the old belt. Slip the old belt off the motor pulley and lift it off the subplatter. Why: A belt stretches and hardens with age. Then it slips on the pulley, and the record plays slow or wavers in pitch. Tip: Look at the old belt before you bin it. A shiny, cracked or stretched belt confirms the diagnosis.
  4. Fit the new belt. Loop the new belt round the rim of the subplatter, then stretch it over the motor pulley. Keep it flat, without a twist. Why: A twisted belt rubs on itself and makes the speed uneven. Tip: Clean, dry fingers only. Oil from skin makes a new belt slip. Wipe the pulley and subplatter rim before you fit it.
  5. Refit the platter. Lower the platter straight down over the spindle until it rests on the subplatter. Why: The platter's mass keeps the speed steady once it is turning. Tip: Lower it, don't drop it. The bearing under the spindle is the one part that has to stay perfect.
  6. Mat back, check the speed. Put the mat back, plug the deck in and play a record you know at 33⅓ and then at 45 rpm. Why: A new belt fixes slow and wavering speed straight away. If it is still off, the speed setting or the motor needs a look. Tip: A strobe disc or a phone strobe app shows the speed exactly.
Level the deck: the 5 steps as text
  1. Pick a solid spot. Put the turntable where it will live: on solid, stable furniture, away from the speakers. Why: Speakers and a wobbly table send vibration into the stylus, heard as hum or a rising howl. Level comes after that. Tip: A sideboard against a wall shakes less than a table in the middle of the room.
  2. Lay a level on the platter. Lay a small bubble level on the platter, between the spindle and the edge. The bubble drifts toward the high side. Why: The platter is what the record sits on, so that is the surface that has to be level, not the plinth or the shelf. Tip: A round bubble level shows both directions at once. A phone level app works too, if the phone lies flat. How to level a turntable →
  3. Turn the feet. Turn the adjustable feet on the low side, a little at a time, until the bubble sits in the middle of its circle. Why: A tilted deck pulls the arm to one side, so the stylus leans on one wall of the groove and wears it, and itself, unevenly. Tip: If the feet are fixed, raise the low side with thin, firm shims under the feet.
  4. Check round the platter. Move the level to a few spots round the platter and check the bubble at each one. Why: A deck can be level side to side and still lean front to back. Checking all round catches both. Tip: Check again after you move the deck, or after the furniture under it shifts.
  5. Play a record. Take the level off, put on a record and lower the arm with the cue lift. Why: With the platter level, the arm tracks the groove with both walls under even pressure. Tip: Leave the dust cover closed between plays so dust stays off the platter and stylus.

How to set up a turntable

From the box to the first record in ten steps. The same steps play out on the 3D model above. Your own manual has the numbers for your deck: tracking force, belt position and which input to use. Play these steps on the 3D model →

  1. Level the deck

    Put the turntable on a solid, level surface away from the speakers. Turn the adjustable feet until a bubble level on the plinth sits centred.

    Why: A tilted deck pulls the tonearm to one side, so the stylus leans on one wall of the groove.

    Tip: A sideboard against a wall shakes less than a table in the middle of the room.

    How to level a turntable →

  2. Fit the belt

    Loop the belt around the rim of the subplatter, then stretch it over the motor pulley.

    Why: The belt carries the motor's rotation to the platter and keeps motor vibration away from it.

    Tip: Handle the belt with clean, dry fingers. Oil from skin makes it slip.

  3. Lower the platter

    Lower the platter straight down over the spindle until it rests on the subplatter.

    Why: The platter's mass keeps the speed steady once it is turning.

    Tip: Don't drop it on. The spindle bearing is the one part that has to stay perfect.

  4. Add the mat

    Lay the mat on the platter, centred on the spindle.

    Why: It grips the record and damps ringing in the metal platter.

    Tip: Felt collects dust. Brush it off now and then so it doesn't end up on your records.

  5. Fit the cartridge

    Screw the cartridge to the headshell and connect the four small wires by colour: red and green for the right channel, white and blue for the left.

    Why: The cartridge turns the stylus's movement into the signal. A loose wire drops a channel.

    Tip: Leave the stylus guard on until the last step. Many budget decks arrive with the cartridge already fitted.

  6. Balance the arm

    Slide the counterweight onto the back of the arm. With anti-skate at zero, turn the weight until the arm floats level, then set the dial to 0 without turning the weight.

    Why: A balanced arm is the zero point. Tracking force is measured from there.

    Tip: Hold the arm lightly while you turn the weight so it can't swing into the platter.

  7. Set tracking force

    Turn the whole counterweight forward to the force your cartridge's manual gives, in grams.

    Why: Too little force and the stylus skips; too much and records and stylus wear faster.

    Tip: A cheap digital stylus scale is the easy way to check the dial.

    Tracking force explained →

  8. Set anti-skate

    Set the anti-skate control. Many manuals start it at the same number as the tracking force.

    Why: It balances the pull toward the centre of the record, so both groove walls wear evenly.

    Tip: If one channel distorts near the end of a side, adjust it a little.

  9. Connect it

    Plug the RCA cables into a phono input, or into a phono preamp first if neither your amplifier nor the deck has one built in.

    Why: A cartridge signal is tiny and needs phono equalisation before a normal line input.

    Tip: If your deck has a ground wire, connect it too. It stops hum.

  10. Play a record

    Put a record on, choose the speed, take the guard off the stylus and lower the arm with the cue lift.

    Why: The cue lift sets the stylus down gently instead of dropping it into the groove.

    Tip: Close the lid when you're done to keep dust off the record and the stylus.

Fitting a new cartridge? Set its overhang and angle with our free cartridge alignment protractor, drawn for your tonearm and printed at true size.

Not sure the platter turns at the right speed? Print our free turntable strobe disc and check 33⅓ and 45 in a minute.

Turntables by model

Each model page shows that deck in 3D with the replacement stylus, belt and cartridge listed from the manufacturer's own manual and parts pages.

Guides for turntable owners

Questions people ask

The plinth (base), the platter that spins the record, the motor and belt or direct-drive motor that turns it, the tonearm, and the cartridge with its stylus. Around them sit the controls, the outputs and the dust cover.
Yes, unless your turntable has one built in or your amplifier has a phono input. A cartridge's signal is far weaker than a line signal and needs phono equalisation first.
On a belt-drive deck the usual cause is a stretched or glazed belt. Check that the speed setting is right, then replace the belt.
It depends on the tip shape and how clean your records are. Manufacturers rate styli in hundreds of hours of play. Harsh, distorted loud passages are the sign to check it.

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