Selden BBB30 Triple Ball Bearing Block – 30mm Sheave, 8mm Line, 600kg SWL
The BBB30 triple ball bearing block runs three 30mm sheaves on stainless ball bearings, giving low-friction purchase for mainsheet and kicker systems.
- Seldén BBB30 triple block, part number 403-101-06
- Three sheaves of 30mm diameter
- Maximum line size 8mm
- Safe working load 600kg
- Breaking load 1200kg
- Weight 77g
- Stainless steel ball bearings running in stainless races
- Glass fibre reinforced sheaves for strength and low wear
- Acetal bearing cage stops ball-to-ball friction
- Suits mainsheet, kicker, backstay and cascade purchase systems
- Ideal for dinghies, sportsboats and small keelboats
A three-part purchase needs a block that turns freely under load, and the Selden BBB30 triple ball bearing block is built for exactly that. Three 30mm sheaves run on stainless steel balls in stainless races, with an acetal cage keeping the balls apart so they roll rather than grind against each other. Rated at 600kg safe working load and 1200kg breaking load on line up to 8mm, it handles mainsheet and kicker systems on dinghies and small keelboats while weighing only 77g. The glass fibre reinforced sheaves shrug off the salt and grit that come with sailing in Ireland, and free-running bearings are what let a crew ease a loaded mainsheet in a gust instead of fighting it.
