Cam bearings no. 67 are the cam bearings for Ink Machines rotary machines (including the Stingray series) — a precision internal replacement part that keeps the cam rotation smooth, quiet, and friction-free. The set contains 2 bearings, one on each side of the cam, and is intended for artists or technicians who maintain their own machine. You replace them when the mechanism becomes noisy, vibrates, or overheats beyond normal.
What role do these bearings play in the machine?▾
They allow the cam to rotate freely, smoothly, and without friction on its shaft. The cam converts the motor's rotation into the linear motion of the needle bar, and the bearings make this conversion efficient, quiet, and vibration-free. In practice, their quality directly determines the noise level, vibrations transmitted to the grip, motor strain, and durability of the entire mechanism.
How many bearings do I receive and why are they sold in a set of 2?▾
You receive 2 bearings. The cam is supported by one bearing on each side, so you need both. They are sold together because simultaneous replacement is the recommended practice: both have the same age and wear level, and you have to remove the cam only once anyway.
How often should they be replaced? (maintenance)▾
In intensive professional use (around 6-8 hours a day, several days a week), it's good to check them about every 6 months and replace them at the first signs of wear. Typical lifespan is 1-2 years, but it depends heavily on regular lubrication, cleaning of residues, and usage intensity. Do not wait for the noise to become loud — advanced wear is already causing damage.
How do I know if the bearings are worn?▾
Classic signs are: increased mechanism noise (clicking or grinding), perceptible vibrations in the grip, high temperature of the machine body, and irregular needle stroke. If any of these appear, check the bearings as soon as possible.
Are they compatible with my machine? (selection)▾
This is part no. 67 for Ink Machines rotary machines, and it is also listed in the catalog under parts for the Stingray series. Before ordering, check your machine model and the part number (no. 67) to ensure it is exactly the component you need.
Can I use generic bearings instead of the original ones?▾
Technically, if you find bearings with exactly the same dimensions and the same precision class, they could work. However, original Ink Machines bearings are specifically selected for this application, with tight tolerances and proper lubrication. Cheap generic bearings may have higher radial play or poor lubrication, leading to noise, vibrations, and premature wear.
