The latest addition to Seldén's Roller Bearing Blocks
by Seldén Mast 14 Aug 09:00 BST

RBB50 Roller Bearing Block © Selden
We are pleased to introduce RBB50, the latest addition to our range of roller bearing blocks. Featuring a 50mm sheave, the RBB50 is a compact, high-performance block designed for demanding, dynamic applications such as spinnaker and gennaker sheers, barber haulers, self-tacking jibs and other high load control lines.
The RBB50 features machined, black anodised aluminium cheeks, Acetal ball bearings that absorb axial (side) loads, and Acetal roller bearings optimised for radial loads. This combination delivers a smooth operation, high efficiency and outstanding durability under load.
The range is now available in three versions:
- Single
- Single with soft attachment
- Single stand-up
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