Description
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The 70mm sheave Size 7 high load cruising block range is engineered for superior strength and performance and offers both plain and ball bearing sheave assemblies. The range features high grade glass fibre nylon reinforced moulded side plates with internal 316 stainless steel frame that is through-bolted and riveted for added strength and durability. This well designed and versatile range is engineered for use on larger cruising and racing yachts and is compatible with our ball bearing mainsheet traveller system.
- Single 72mm x 20mm (2 53/64” x 3/4”)
- Fiddle 44/72mm x 20mm (1 3/4” /2 53/64” x 3/4”)
- Max rolling load (ball bearing blocks) 875kg (1929lbs)
- Max rope diameter 14mm (9/16”)
- SWL 1250kg (2750lbs)
| Part No. | Part No. | Length (mm) | Weight (g) | Weight (g) | |
| Plain Sheave | Ball Bearing Sheave | Plain | Ball | ||
| N07090 | N17090 | Single – double tang | 150 | 276 | 278 |
| N07110 | N17110 | Single – fixed eye | 137 | 255 | 253 |
| N07111 | N17111 | Single – fixed eye + becket | 166 | 298 | 296 |
| N07120 | N17120 | Single – reverse shackle | 168 | 311 | 309 |
| N07121 | N17121 | Single – reverse shackle + becket | 195 | 354 | 351 |
| N07130 | N17130 | Single – swivel | 163 | 364 | 348 |
| N07131 | N17131 | Single – swivel + becket | 197 | 394 | 391 |
| N07140 | N17140 | Single – snap shackle | 168 | 359 | 350 |
| N07141 | N17141 | Single – snap shackle + becket | 200 | 394 | 385 |
| N07170 | N17170 | Single – stand up | 162 | 444 | 444 |
| N07171 | N17171 | Single – stand up + becket | 191 | 480 | 471 |
| N07180 | N17180 | Single – variloc | 163 | 328 | 324 |
| N07181 | N17181 | Single – variloc + becket | 192 | 364 | 348 |
| N07220 | N17220 | Double – reverse shackle | 160 | 461 | 456 |
| N07221 | N17221 | Double – reverse shackle + becket | 195 | 509 | 503 |
| N07320 | N17320 | Triple – reverse shackle | 165 | 616 | 615 |
| N07321 | N17321 | Triple – reverse shackle + becket | 199 | 659 | 637 |
| N07330 | N17330 | Triple – swivel | 163 | 635 | 725 |
| N07331 | N17331 | Triple – swivel + becket | 192 | 678 | 671 |
| N07420 | N17420 | Fiddle – reverse shackle | 220 | 411 | 390 |
| N07421 | N17421 | Fiddle – reverse shackle + becket | 252 | 428 | 428 |
| N07430 | N17430 | Fiddle – swivel | 220 | 469 | 435 |
| N07431 | N17431 | Fiddle – swivel + becket | 248 | 470 | 470 |
| N07440 | N17440 | Fiddle – snap shackle | 222 | 453 | 439 |
| N07441 | N17441 | Fiddle – snap shackle + becket | 253 | 488 | 471 |
| N07480 | N17480 | Fiddle – variloc | 220 | 417 | 405 |
| N07481 | N17481 | Fiddle – variloc + becket | 249 | 439 | 430 |
| N07631 | N17631 | Fiddle – swivel + becket + cam | 248 | 660 | 654 |
| N07641 | N17641 | Fiddle – snap shackle + becket + cam | 250 | 670 | 653 |
| N07681 | N17681 | Fiddle – variloc + becket + cam | 245 | 637 | 628 |
| N07930 | N17930 | Triple – swivel + cam | 163 | 841 | 844 |
| N07931 | N17931 | Triple – swivel + becket + cam | 192 | 886 | 797 |
Important note:
Suggested boat sizes are given as a guidance only and assume a monohull with boom end sheeting, loaded vertically to the traveller.
Mid-boom sheeting, severely angled take offs and curved tracks can impose greater loads and suitable allowances should be made for this. If at all unsure of your choice it is important to seek further advice. If you are close to the maximum boat size suggested, we would advise upgrading to a Torlon package, long car or the next size up.





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