Ball bearings
Power package with a long service life
Ball bearings are the most frequently used rolling bearing products and are a particularly economical solution. A long service life, high load capacity, guaranteed safety, reliable sealing technology and a particularly low noise level – these are all requirements that a ball bearing should meet. As a specialist for rolling bearing technology, we offer a wide range of ball bearings, including for special, extreme application conditions, and guarantee the best quality in four performance classes at optimum prices and with short delivery times.
A history of rolling bearings
Rolling bearings make movement possible. They do this in a wide variety of ways because, when it comes to rolling elements, there are three different designs: balls, rollers and needles. Italian all-round genius Leonardo da Vinci is considered the father of today’s rolling bearing technology: In 1490, he drew the first sketch of a modern ball bearing. Instead of just lubricating the axle and wheel and inserting one into the other, he put a layer of balls between the two components, thereby practically re-inventing the wheel.
However, it was only about 300 years later that this idea started to be used on a massive scale; the ball race was "reinvented" in 1772 and tested in vehicles. Another groundbreaking innovation was the invention of the ball cage, which significantly increased the performance of bearings. Friedrich Fischer’s ball grinding machine enabled perfectly even circular grinding of hardened steel balls, even in large quantities. Fischer’s development laid the foundation for the modern rolling bearing industry.
Over the decades, it was possible to achieve continuous improvements in performance. Findling’s ABEG® method uses these different technology levels in order to offer optimal technical and economical solutions.
Deep-groove ball bearings of electric motor quality
Deep-groove ball bearings from the Xspeed series are specifically designed for use in electric motors and also deliver a convincing performance at high speeds with a particularly long service life..
The Xspeed bearings are designed for high-speed applications. Their use is therefore also recommended in pumps, compressors, fans, rotary encoders or air-conditioning systems. Since running properties play a special role in this segment, Xspeed bearings meet the highest requirements when it comes to the surface quality and profiling of the raceways. They are manufactured in tolerance class P6 with increased precision and radial runout accuracy. The bearing clearance is adapted to the high speeds by tightening the tolerance. This makes it possible to optionally adjust the residual bearing clearance based on the selection of the housing and shaft fit. For a particularly long service life, lubrication and seals were optimized with respect to the requirements of high-speed applications. A special high-purity, viscous and quiet grease with excellent start-up behavior ensures optimum operation at high speeds. The 2RSDD seal variant (axially abutting contact rubber seal inserted into the groove on both sides) reduces the internal heating of the bearing by a whole 10 °C. An even lower-friction (2RW) variant and a non-contact seal variant (LLB) are optionally available.
Findling’s rolling bearing technology
As a specialist for rolling bearing technology, we offer a wide range of ball bearings in all ABEG® performance classes, such as single-row or double-row deep-groove or angular contact ball bearings, as well as thrust or radial bearings, magneto bearings, four-point contact bearings or self-aligning ball bearings, which can have a sealed or unsealed design and be made of a variety of materials. Ball bearings are the most frequently used products and are a particularly economical solution.
Technical know-how for ball bearings
PN/P0 tolerance class for radial bearings (without tapered roller bearings)
The tolerance class P0 is the standard tolerance class for roller bearings and is usually omitted in the type and order designation for the purpose of abbreviation.