We will be closed for the Christmas and New Year holidays from Dec. 22nd, 2025, to Jan. 6th, 2026. Orders placed after December 17th, 2025 will be shipped starting January 12th, 2026.
Ronstan
Series 75 BB Block, Triple
BB triple block, universal head
Special Price
326.41€
was
336.51€
On Request
SKU
RF70300
FEATURES
- Low friction, 2-stage ball bearing system
- High static and dynamic load capacity
- Lightweight
- Cheek cut-outs for easy bearing maintenance
- Lockable swivelling head post
- High strength forged shackle
PRODUCT INFORMATION
Blocks can be disassembled for servicing or customisation.Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.
APPLICATIONS
- Mainsheet sheets on boats to 11m (36ft)
- Various control line applications on larger yachts
MATERIALS
- Carbon black Acetal ball bearings
- U.V. stabilised Acetal sheaves
- Alloy cheeks
- Grade 316 stainless steel forged shackle
- Grade 316 stainless steel bearing linner
TECHNICAL DATA
| Sheave Ø | 75 mm |
|---|---|
| Max. Rope Ø | 12 mm |
| Max. Cable Ø | - mm |
| Pin Ø | 7.0 mm |
| M.W.L. | 1250 kg |
| B. L. | 2500 kg |
| Weight | 632 g |