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Our Part #: RONRF79151 | Mfr. Part #: RF79151
| Description | Imperial | Metric |
|---|---|---|
| Sheave Ø | 3.00 in. | 75.00 mm. |
| Maximum Rope | 5/9 in. | 14.00 mm. |
| Maximum Working Load | 4851.00 lb. | 2200.00 kg. |
| Breaking Load | 9922.50 llb. | 4500.00 kg. |
| Weight | 9.49 oz. | 269.00 gr. |
Orbit blocks™ are a no-compromise product range developed to meet the demands and expectation of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head structure and hub are precision machined as a single part from solid alloy, leaving material only where it contributes to the load carrying capacity of the block and eliminating the need for additional fasteners. The Orbit sheave has captive Acetal or Torlon® ball bearings for side thrust loads, eliminating the need for side retainer plates. This reduces weight and allows for a wider bearing surface that can accommodate longer Torlon® needles - achieving a substantially higher strength-to-weight ratio.
Applications
- Primary mainsheet, halyard and spinnaker systems on boats to 16m (53ft)
- Secondary mainsheet, vang blocks on boats to 18m (60ft)
- Backstay systems on boats to 14m (46ft)
- General control line and lead block applications on larger yachts
Materials:
- Fully machined Alloy cheek plates
- Alloy sheaves with captive ball races
- Torlon needle rollers
- Carbon black Acetal ball bearings
Our Part # RONRF79151 | Ronstan Part # RF79151
Features:
- The highest strength-to- Weight: ratio.
- Minimal friction loss, especially when working at high loads.
- Captive ball bearings for side thrust loads.
- Totally reliable and trouble free performance.
- Simplicity of design and construction to facilitate maintenance and servicing.
- Elegant, functional styling and finish.
- Stackable to create double version.
- Removable cover plate.