PBA Catalog
Rotary Stroke Bearings
Page 1 of 2
Guide Shaft E400/E421/E423/E425 (
)

- Guide diameter dw is precision ground and lapped to ISO h3, Rz <1 m
- Straightness within 5 m/100 mm
- Ends are either rounded or have lead-in taper
Types Of Product Series Available:
- N400 Guide shaft to DIN 9825
- N421 Guide shaft with internal thread on press-in side
- N423 Guide shaft with internal thread on guide side
- N425 Guide shaft with internal thread on both sides
Download Official Mahr Rotary Stroke Bearings Catalogs
Plastic Cage (
)

- Injection-molded
- The balls are captive but can move easily
- Balls which are staggered in the axial direction extend the service life of the rotary stroke bearing
- The cages which are provided with mating pins and slots can be used for combining individual sections to form any desired length
Download Official Mahr Rotary Stroke Bearings Catalogs
Brass Ball Cage N501 (
)

- The ball chambers are mechanically caulked so that the balls remain captive but still move easily
- The ball formation ensures smooth running and substantially lengthens the service life of the rotary stroke bearing
- Balls which are staggered in the axial direction extend the service life of the rotary stroke bearing
- Brass offers high mechanical stability, optimum sliding properties, and high resistance to abrasion and heat
Download Official Mahr Rotary Stroke Bearings Catalogs
Brass Ball Cage With CirClip N511 (
)

- The ball chambers are mechanically caulked so that the balls remain captive but still move easily
- Large number of balls ensures high loading capacity
- Brass offers high mechanical stability, optimum sliding properties, and high resistance to abrasion and heat
Download Official Mahr Rotary Stroke Bearings Catalogs
Open Guide Bush N550 (
)

- Guide bore diameter d1 is finely honed to ISO tolerance IT 3, Rz 0.5 - 1.5 m depending on diameter.
- Roundness within 1/3 ISO-IT 3
- Cylindricity within IT 1
- Radial run-out of a shaft inserted under preloading is within 0.0005 mm
- Tapered inside edges on both sides ensure smooth running
- Outside diameter dB n4 with radial run-out error within IT 4, ground to guide bore diameter d1 lead-in taper on one side
Download Official Mahr Rotary Stroke Bearings Catalogs
