Name: Ronstan Series 55 Orbit Ratchet Fiddle Block RF56510 Becket Swivel Head
Brand: Ronstan
SKU: 70708
Price: 99.9 USD
Availability: InStock

From the entry

Brand new in original packaging.

Ronstan Series 55 Orbit Ratchet Fiddle Block (MPN RF56510) with integrated becket and 316 stainless steel swivel shackle head
Offers both auto and manual ratchet engagement modes, delivering up to 20:1 holding power for easy line control
Maximum Working Load of 550 lb and Breaking Load of 1650 lb; pin diameter 3/16 in
Twin sheave fiddle design: 2 5/32 in main sheave plus 1 3/8 in fiddle sheave for smooth line handling
Lightweight construction at approximately 3.9 oz using anodized aluminum sheave, acetal ball bearings, and glass-fiber reinforced nylon frame
Ideal for dinghy mainsheet systems, asymmetric spinnaker sheets, and control lines on sportsboats, small keelboats, and larger yachts

Specifications

Brand	Ronstan
MPN	RF56510
UPC/EAN	9316800480241
Product Type	Ratchet fiddle block with becket and swivel shackle head
Pin Diameter	3/16 in
Maximum Working Load	550 lb
Breaking Load	1650 lb
Sheave Diameter	2 5/32 in + 1 3/8 in (fiddle)
Weight	3.9 oz
Ratchet Modes	Auto and manual engagement
Holding Power	Up to 20:1
Sheave Material	Anodised aluminium
Bearing Material	High compression strength carbon black acetal
Frame/Cheek Material	Glass fibre reinforced nylon
Swivel Shackle Head Material	Grade 316 stainless steel
Applications	Dinghy mainsheets, spinnaker sheets, sportsboat/keelboat control lines