Description
Harken 57mm Carbo Double Ratchamatic Block – 2634 – The Carbo Ratchamatic® is a load-sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless. Use the 2634 with a 402 or 403 swivel arm for a versatile two-speed mainsheet system.
| Sku | Name | Sheave Ø mm (in) | Length mm (in) | Weight g (oz) | Shackle pin Ø mm (in) | Maximum line Ø mm (in) | Maximum working load kg (lb) | Breaking load kg (lb) | Holding power |
|---|---|---|---|---|---|---|---|---|---|
| 2634 | 57 mm Double Ratchamatic® Block — Swivel | 57 (2 1/4) | 116 (4 9/16) | 204 (7.2) | 6 (1/4) | 10 (3/8) | 340 (750) | 851 (1875) | 10:1 |
