測定室、生産、検品、開発における品質管理のための高品位測定器
Gear Metering Pumps & Meter Mix Dispense Machines with highest accuracy for processing liquids and pastes.
High-precision rotary stroke bearings for backlash-free linear and rotational movements for use in machine and device construction.
Ball-bearing guides for linear and rotational movements without play for use in all technical areas where reliability and precision are required.
The guide diameter finely honed to ISO tolerance IT 3 guarantees the preload of the ball bearing guide in combination with shaft diameter ISO-h3.
Universal, slim inner bevels on both sides.
Permanently installed thrust washers on both sides provide a safe travel limit for the ball cage.
Permanently installed thrust washers on each side and sealing rings prevent impurities from getting into the ball bearing guide.
Extra sturdy model with scrapers on both sides which reliably prevent impurities from getting in, even in very dirty environments.
Universal, slim inner bevels on both sides, for use with ball cage from mini series N502.
Permanently installed thrust washers on both sides provide a safe travel limit for the ball cage from mini series N502.
The balls can move easily without getting lost. The balls are arranged in such a way that they run smoothly and ensure a long service life of the ball bearing guide.
Excellent dry run properties and maximum smoothness, even at high accelerations thanks to the lightweight plastic.
Versatile with balls arranged along a helical line, ideal for linear movements and rotational movements.
Smaller balls used with same shaft diameter compared to type N501. Reduced installation space thanks to guide bushes from the mini series.
High loading capacity thanks to large number of balls, reliable travel limit for the cage thanks to the securing ring.
The finely-ground surface is ideal for high precision ball bearing guides, ensuring smooth running and a long service life of the ball bearing guide.
Preload is guaranteed when using with Mahr guide bushes and ball cages.
Inner thread on both sides, preload is guaranteed when using with Mahr guide bushes and ball cages.
Broader and more optimized range of uses.
Protect open ball-bearing guides against dirt without compromising smooth movement.
Lubrication for maximum performance and corrosion prevention.
Installation of the ball cage
If ball cages are installed with open guide bushes, the ball cage should enter the guide bush together with the guide shaft. As the balls are under interference fit (preload), this is the only way that prevents the balls from sliding between the bush and shaft.
For rotary stroke bearing assemblies with closed guide bushes, the guide shaft must be inserted against the resistance of the preload. This does not damage the rotary stroke bearing. Grease lubrication is useful to prevent damaging the balls.
On ball cages with a larger diameter, particular care must be taken to ensure that the cage is sufficiently centered in the guide bush during assembly.
Travel limitation for the ball cage
Despite the frictional connection between the balls and the running surfaces, the ball cage can change its position in the longitudinal direction ("wandering cage").
In rotary stroke bearings with an open guide bush, the cage travel must be limited so that the ball cage cannot move out of the guide bush more than a certain permissible distance. This is ensured by fixed or elastic stops.
- Stop sleeve that is installed loosely over the shaft between the ball cage at the stroke reversal position and the part that is retaining the shaft.
- Clamping bush that can be fixed at any position on the shaft.
- Circlips that limit the cage travel.
- Compression springs.
