DESCRIPTION
DESCRIPTION
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.
Our Part # HAR2634 | Mfr. Part # 2634
FEATURES
FEATURES
- 57mm Carbo Ratchamatic double block.
- Automatic ratcheting engages under load.
- Lightweight, strong Carbo composite construction.
- Standard grip for controlled sheeting.
TECHNICAL INFORMATION
TECHNICAL INFORMATION
| Description | Imperial | Metric |
|---|---|---|
| Sheave Ø | 2 1/4 in | 57.0 mm |
| Length | 4 9/16 in | 116.0 mm |
| Weight | 7.2 oz | 204.0 g |
| Shackle Pin | 1/4 in | 6.0 mm |
| Maximun line Ø | 3/8 in | 10.0 mm |
| Maximum working load | 750.0 lb | 340.0 kg |
| Breaking Load | 1876.5 lb | 851.0 kg |
| Holding power | 10: 1 | |
KNOWLEDGE BASE
KNOWLEDGE BASE
Harken Cam Swivel Bases — InstructionsSpecs and operation for the Harken Cam Swivel Bases, by Harken part number.View Manual →
Harken 57 mm and 75 mm Carbo Ratchamatic Blocks — InstructionsSpecs, operation, mounting and maintenance for the Harken 57 mm and 75 mm Carbo Ratchamatic Blocks, by Harken part number.View Manual →
Harken Mainsheet System Selection GuidePick a Harken mainsheet system by purchase and boat size: 4:1 to 8:1 tackles, gross/fine cascades, dedicated-winch.View Selection Guide →





