Profile Rail – SBG Recirculating Ball Bearing Guide
Recirculating Ball Bearing Guide with X-Arrangement of the Raceways
SBG recirculating ball bearing guides have four closely spaced rows of balls. Due to the force distribution, this arrangement is sometimes referred to as an O-arrangement. These guides are somewhat more elastic, allowing them to better accommodate larger misalignments without jamming. For this reason, they are more commonly used in handling technology.
Important Note:
SBG recirculating ball bearing guides are a discontinued model. They should only be used for repairs. For new designs, please use our ARC-HRC-ERC recirculating ball bearing guides. If spare parts for SBG are unavailable, SBI linear guides can be used as a replacement. These have identical dimensions, but the rail and carriage must be replaced together.
- SBI carriages only run on SBI rails.
- SBG carriages only run on SBG rails.
SBG Recirculating Ball Bearing Guides Range
Linear Guide SBG..-FL
Wide, high, standard FL carriage for SBG linear guides
Linear Guide SBG..-FLL
Wide, long carriage for SBG recirculating ball bearing guides
Linear Guide SBG..-SL
Narrow, high, standard SL carriage for SBG linear guides
Linear Guide SBG..-SLL
Narrow, high SLL carriage for SBG linear guides
Linear Guide SBS..-SLL
Long, narrow, high SLL and HLL carriages for SBS linear guides
Linear Guide SBS..-FV
Short, wide FV carriage for SBS linear guides
Linear Guide SBS..-SV
Short, narrow SV carriage for SBS linear guides
Features
SBG linear guides have four rows of balls arranged in an X-arrangement, which makes the system significantly more flexible with respect to assembly inaccuracies.
However, this increased flexibility comes at the expense of rigidity.
Recirculating ball bearing guides with an O-arrangement are considerably stiffer.
Applications
SBG recirculating ball bearing guides are particularly well-suited for handling applications due to their slightly softer design. With the same preload, larger deviations on the mounting surfaces can be accommodated.
When used in machine tools for machining, a higher preload class must be selected compared to linear guides with an O-arrangement to achieve a comparable level of rigidity. Note that this higher preload can negatively affect service life.
