RL-TNG Stainless Steel Knob Ball Bearing | Set of 4 | 4x7x2.5

The stainless steel ball bearings in ABEC 5 quality ensure a smooth operation of your knobs!

The set includes four ball bearings each in the size 4x7x2.5 mm.

The High Precision Stainless Steel Bearings ensure that your crank knob can rotate smoothly. Ideal for replacing old ball bearings or equipping new knobs with ball bearings that only contain plastic bearings.

What does ABEC mean?

ABEC is a standard that indicates how high the manufacturing tolerance is.
The higher the number, the higher the accuracy of the ball bearing's manufacturing and the smoother it runs.
The standard is only given with odd numbers.

This means that ABEC 3 ball bearings are rather low-end, followed by ABEC 5 and 7, which are the most commonly used bearings. They are usually installed as standard.

Why use tuning bearings?

In general, ball bearings installed in the reel from the factory often do not have good rotation properties because a lot of grease and dust prevent smooth operation.

The stainless steel ball bearings are delivered pre-oiled and are equipped with a anti-rubber cover that protects the bearings from dirt particles. You can remove this cover for cleaning and oiling.

You can also install the ball bearings without the cover, which will squeeze a little more speed out of the ball bearings because friction is reduced.

Long durability

The bearings are oiled as standard, but we recommend every user to re-oil the ball bearings after a season, preferably with the Alchemy Oil from Hedgehog Studio or the Premium Ball Bearing Oil from Glitch Oil.

This way you simply get longer use out of them and don't have to maintain the ball bearings as often; furthermore, the humming of the ball bearings is significantly reduced when you oil them.
Just one drop of oil is enough to enjoy them for a long time.