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Complementary Hardware > Big Boat Sheaves
Big Boat sheaves are available for special applications as well as for replacement sheaves in Big Boat blocks. Made of Hardkote-anodized.Teflon^impregnated 6061-T6 aluminum, sheaves feature Torlon® rollers to carry high radial loads and carbon-black Delrin® balls to support sideloads and provide UV protection. Select sheaves based on load-carrying capability.Installation requires clamping or securing inner race.
Use for:
 |
|
 640 500 603 |
 518 657 519 520 |
 550 |
 1539 |
| Part No. | Sheave  |
Width | Weiqht | Center pin |
Fasteners | Fastener circle | Max line |
Safe working load | Breaking strength | |||||||||
| in | mm | in | mm | oz | g | in | mm | in | mm | in | mm | in | mm | Ib | kg | Ib | kg | |
| 500 | 3 | 76 | 7/8 | 22 | 6 | 170 | 3/8 | 10 | 3/8 | 10 | — | — | 9/16 | 14 | 4950 | 2245 | 9900 | 4490 |
| 518 | 41/2 | 114 | 1 | 25 | 16 | 454 | 3/4 | 19 | 3/8 | 10 | 13/8 | 35 | 3/4 | 19 | 7500 | 3401 | 15000 | 6803 |
| 519 | 51/2 | 140 | 11/8 | 29 | 27 | 765 | 7/8 | 22 | 3/8 | 10 | 15/8 | 41 | 7/8 | 22 | 9100 | 4127 | 18200 | 8254 |
| 520 | 7 | 178 | 11/8 | 29 | 45 | 1280 | 11/2 | 38 | 1/2 | 12 | 21/2 | 64 | 7/8 | 22 | 14000 | 6349 | 28000 | 12698 |
| 550 | 4 | 102 | 7/8 | 22 | 10 | 284 | 3/8 | 10 | 3/8 | 10 | — | — | 9/16 | 14 | 4950 | 2245 | 9900 | 4490 |
| 603 | 3 | 76 | 19/16 | 40 | 10 | 284 | 3/8 | 10 | 3/8 | 10 | — | — | 9/16 | 14 | 4950 | 2245 | 9900 | 4490 |
| 640 | 21/2 | 64 | 11/4 | 32 | 6 | 170 | 5/16 | 8 | 5/16 | 8 | — | — | 7/16 | 12 | 2000 | 907 | 4000 | 1814 |
| 657 | 41/2 | 114 | 15/8 | 41 | 25 | 709 | 3/4 | 19 | 3/8 | 10 | 13/8 | 35 | 3/4 | 19 | 14850 | 6736 | 29700 | 13472 |
| 1539 | 21/2 | 64 | 13/8 | 35 | 7 | 198 | 5/16 | 8 | 5/16 | 8 | — | — | 7/16 | 12 | 3000 | 1361 | 6000 | 2721 |
Ball Bearing Cam Cleats | Cam Cleat Accessories | Cam Bases | Trigger Cleat | Trigger Cleat Swivel Base | Stand-up Bases | Magic Boxes | Self-contained Sheaves | Big Boat Sheaves | High-Load Sheaves | Narrow Halyard & Streering Sheaves | ESP Deck Organizers | Small Boat Deck Organizers | Midrange Deck Organizers | Big Boat Deck Organizers | Spinnaker Pole Cars & End Fittings | Stay Tensioners | Eyestraps | Padeyes | Stainless Steel Shackles | LOUPS | Accessories | Storage Systems