Lewmar Synchro Footblocks |  |
Lewmar Synchro Footblocks  For low-load Lewmar footblocks, you'll want composite sheaves and friction cams. For high load, alloy sheaves and spring cams. The jammer holding load is no more than 300 kg / 660 lb. Be sure you don't load the upper sheave beyond 60% of the Safe Working Load. Synchro blocks from Lewmar are engineered for speed, efficiency and superior handling. These blocks suit a range of purposes from performance cruising yachts to specific high-load low-movement applications on racing sailboats. Lewmar uses a combination of scientifically optimised block geometry, a Free-Spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Sheaves run on Torlon rollers with dual Delrin ball side thrust races. Alloy sheaves, alloy bayonet cheeks for simply servicing. Safe working loads are quoted for the whole assembly. |
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Lewmar Synchro Footblocks
Lewmar Synchro Footblocks from Lewmar are engineered for speed, efficiency and superior handling. These blocks suit a range of purposes from performance cruising yachts to specific high-load low-movement applications on racing sailboats. Lewmar uses a combination of scientifically optimised block geometry, a Free-Spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.
Product Features:
- Standard and jammer options can be double stacked
- Two-step jammer action keeps lever close to side of the block
- Optimised jammer shape holds line central on the sheave
| Part No | Type | Sheave Diameter | Working Load limit | Weight | Line Size |
|---|---|---|---|---|---|
| 29926061BK | Single |
60mm (2 3/8 in) |
800 kg (1764 lb) |
162g (5.70 oz) |
8mm (5/16 in) |
| 29927261BK | Single | 72mm (2 27/32 in) |
1200 kg (2645 lb) |
229g (8.10 oz) |
10mm (3/8 in) |
| 29929061BK | Single | 90mm (3 35/64 in) |
2000 kg (4409 lb) |
430g (15.20 oz) |
12mm (1/2 in) |
| 29926064BK | Jammer |
60mm (2 3/8 in) |
800 kg (1764 lb) |
190 g (6.70 oz) |
8mm (5/16 in) |
| 29927264BK | Jammer | 72mm (2 27/32 in) |
1200 kg (2645 lb) |
250 g (8.80 oz) |
10mm (3/8 in) |
| 29929064BK | Jammer | 90mm (3 35/64 in) |
2000 kg (4409 lb) |
480g (16.90 oz) |
12mm (1/2 in) |
|
| Footblock Size | A | B | C |
|---|---|---|---|
| 60mm Footblock | 98.0 mm (3 7/8 in) |
51.0 mm (2 in) |
59 mm (2 5/16in) |
| 72mm Footblock | 110.6 mm (4 5/16 in) |
58.0 mm (2 5/16in) |
71 mm (2 13/16 in) |
| 90mm Footblock | 134.0 mm (5 4/16 in) |
69.0 mm (2 11/16 in) |
89 mm (3 1/2 in) |
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