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  You are here: Home » Shop » Sailing & Rigging » Blocks & Sheaves » Ronstan Orbit Ball Bearing Blocks

Ronstan Orbit Ball Bearing Blocks

Let's See What We Have Here

Ball Bearing Orbit Block - BALL BEARING

LESS FRICTION, ULTIMATE PERFORMANCE

Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.
This is achieved through all-composite reinforced polymer materials and a Dyneema® rope link head. Their precision design allows the optimum number of ball bearings in loaded areas and eliminates them in inactive areas. Ineffective mass is reduced even further through fibre-reinforced composites in the block head, cleat arms and beckets.

  • Ultra lightweight.
  • Highest working load in its class.
  • Simple and secure attachment. The Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip.
  • Low profile and compact.
  • Fiddle block flexibility.
  • High performance cleating.
  • Used for sheets and control lines on dinghies, sports boats and small keel boats. Control lines on larger yachts.

Series 20, Series 30, Series 40, Series 55, Series 70

Lightweight

- Kilogram for kilogram of working load, BB and RT Orbit Blocks are the world's lightest. To gain peak performance, we engineered out the heavy steel load straps, head post, shackle, full-length fasteners, and cleating accessories. Through extensive research and development, we replaced virtually all metal components with high-tech polymers and fibre equivalents. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible. Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.

Simple and secure attachment

- The Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins. The system is compatible with Dyneema®/Spectra® strops, webbing and carbon connection points - much more so than steel loop tops or shackles.

Highest working load in its class

- The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The floating sheave and bearing system is supported by a fibre-reinforced load frame. The design was computer modeled to be stress optimised. The Dyneema® Link is produced from FSE Robline SK75 fibre, which is 10 times h6er and lighter than steel, and provides the final connection from the block to the load point.

Low profile and compact

- The flexible Dyneema® Link provides controlled rotation and 0° or 90° orientation. It connects directly to the head of the block rather than to an intermediate head post. This reduces weight and gives the lowest possible profile while allowing full articulation. Beckets have been carefully designed to minimise height.

Orbit Features
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Displaying 1 to 20 (of 47 products) Result Pages:  1  2  3  [Next >>] 
 RONSTAN #RF2454, 40MM ORBIT BLOCK STAND 
RONSTAN #RF2454, 40MM ORBIT BLOCK STAND  by RONSTAN
Stand up base for series 40 BB and RT orbit blocks...more
The Chandlery #: 054_HRF2454
Our Price: CAD$8.55
                   USD$6.33 This item qualifies for free shipping.
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 RONSTAN #RF25109, 20MM SINGLE ORBIT BLOCK 
RONSTAN #RF25109, 20MM SINGLE ORBIT BLOCK  by RONSTAN
RONSTAN #RF25109...more
The Chandlery #: 054_HRF25109
Our Price: CAD$18.99
                   USD$14.05
Special: CAD$12.15
               USD$8.99
You Save: CAD$6.84! This item qualifies for free shipping.
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 RONSTAN #RF35100, 30MM SINGLE/BECKET/SWIVEL ORBIT BLOCK 
RONSTAN #RF35100, 30MM SINGLE/BECKET/SWIVEL ORBIT BLOCK  by RONSTAN
RONSTAN #RF35100...more
The Chandlery #: 054_HRF35100
Our Price: CAD$35.99
                   USD$26.63
Special: CAD$25.35
               USD$18.76
You Save: CAD$10.64! This item qualifies for free shipping.
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 RONSTAN #RF35100A, 30MM SHACKLE HEAD ORBIT BLOCK 
RONSTAN #RF35100A, 30MM SHACKLE HEAD ORBIT BLOCK  by RONSTAN
Series 30 ball bearing orbit block...more
The Chandlery #: 054_HRF35100A
Our Price: CAD$33.27
                   USD$24.62 This item qualifies for free shipping.
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 RONSTAN #RF35100D, 30MM SELF LUBRICATING ORBIT BALL BEARING BLOCK 
RONSTAN #RF35100D, 30MM SELF LUBRICATING ORBIT BALL BEARING BLOCK  by RONSTAN
Self lubricating orbit ball bearing blocks...more
The Chandlery #: 054_HRF35100D
Our Price: CAD$31.99
                   USD$23.67 This item qualifies for free shipping.
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 RONSTAN #RF35101, 30MM ORBIT BALL BEARING BLOCK 
RONSTAN #RF35101, 30MM ORBIT BALL BEARING BLOCK  by RONSTAN
Single orbit ball bearing block...more
The Chandlery #: 054_HRF35101
Our Price: CAD$23.99
                   USD$17.75 This item qualifies for free shipping.
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 RONSTAN #RF35101D, 30MM SELF LUBRICATING ORBIT BALL BEARING BLOCK 
RONSTAN #RF35101D, 30MM SELF LUBRICATING ORBIT BALL BEARING BLOCK  by RONSTAN
Self lubricating orbit ball bearing blocks...more
The Chandlery #: 054_HRF35101D
Our Price: CAD$44.99
                   USD$33.29 This item qualifies for free shipping.
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 RONSTAN #RF35140, 30MM STAND UP ORBIT BALL BEARING BLOCK 
RONSTAN #RF35140, 30MM STAND UP ORBIT BALL BEARING BLOCK  by RONSTAN
Stand up, swivel, orbit ball bearing block...more
The Chandlery #: 054_HRF35140
Our Price: CAD$35.99
                   USD$26.63
Special: CAD$23.40
               USD$17.32
You Save: CAD$12.59! This item qualifies for free shipping.
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 RONSTAN #RF35141, 30MM STAND UP ORBIT BALL BEARING BLOCK 
RONSTAN #RF35141, 30MM STAND UP ORBIT BALL BEARING BLOCK  by RONSTAN
Stand up orbit block with series 30 ball bearings...more
The Chandlery #: 054_HRF35141
Our Price: CAD$25.15
                   USD$18.61 This item qualifies for free shipping.
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 RONSTAN #RF35151, 30MM ORBIT BALL BEARING CHEEK BLOCK 
RONSTAN #RF35151, 30MM ORBIT BALL BEARING CHEEK BLOCK  by RONSTAN
Orbit ball bearing cheek block...more
The Chandlery #: 054_HRF35151
Our Price: CAD$25.99
                   USD$19.23 This item qualifies for free shipping.
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 RONSTAN #RF35202, 30MM DOUBLE ORBIT BLOCK 
RONSTAN #RF35202, 30MM DOUBLE ORBIT BLOCK  by RONSTAN
Orbit ball bearing block, with 2 sheaves...more
The Chandlery #: 054_HRF35202
Our Price: CAD$63.99
                   USD$47.35 This item qualifies for free shipping.
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 RONSTAN #RF35212, 30MM DOUBLE/BECKET ORBIT BLOCK 
RONSTAN #RF35212, 30MM DOUBLE/BECKET ORBIT BLOCK  by RONSTAN
Ronstan 30 mm double orbit block with becket...more
The Chandlery #: 054_HRF35212
Our Price: CAD$64.99
                   USD$48.09
Special: CAD$45.50
               USD$33.67
You Save: CAD$19.49! This item qualifies for free shipping.
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 RONSTAN #RF35284, 30MM DOUBLE/LINKED ORBIT BLOCK 
RONSTAN #RF35284, 30MM DOUBLE/LINKED ORBIT BLOCK  by RONSTAN
Ronstan 30 mm linked orbit blocks...more
The Chandlery #: 054_HRF35284
Our Price: CAD$30.81
                   USD$22.80 This item qualifies for free shipping.
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 RONSTAN #RF35286, 30MM DOUBLE/CLEW RING ORBIT BLOCKS 
RONSTAN #RF35286, 30MM DOUBLE/CLEW RING ORBIT BLOCKS  by RONSTAN
Two Ronstan orbit blocks linked together with a clew ring...more
The Chandlery #: 054_HRF35286
Our Price: CAD$73.99
                   USD$54.75 This item qualifies for free shipping.
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 RONSTAN #RF35302, 30MM TRIPLE ORBIT BLOCK 
RONSTAN #RF35302, 30MM TRIPLE ORBIT BLOCK  by RONSTAN
Triple block, with orbit ball bearings....more
The Chandlery #: 054_HRF35302
Our Price: CAD$80.99
                   USD$59.93 This item qualifies for free shipping.
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 RONSTAN #RF35312, 30MM TRIPLE/BECKET ORBIT BLOCK 
RONSTAN #RF35312, 30MM TRIPLE/BECKET ORBIT BLOCK  by RONSTAN
Triple ronstan orbit block with becket...more
The Chandlery #: 054_HRF35312
Our Price: CAD$86.99
                   USD$64.37 This item qualifies for free shipping.
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 RONSTAN #RF35322, 30MM TRIPLE/CLEAT ORBIT BLOCK 
RONSTAN #RF35322, 30MM TRIPLE/CLEAT ORBIT BLOCK  by RONSTAN
Ronstan triple orbit block with cleat....more
The Chandlery #: 054_HRF35322
Our Price: CAD$138.99
                   USD$102.85 This item qualifies for free shipping.
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 RONSTAN #RF35332, 30MM TRIPLE/BECKET/CLEAT ORBIT BLOCK 
RONSTAN #RF35332, 30MM TRIPLE/BECKET/CLEAT ORBIT BLOCK  by RONSTAN
Ronstan triple orbit block with cleat and becket....more
The Chandlery #: 054_HRF35332
Our Price: CAD$144.99
                   USD$107.29 This item qualifies for free shipping.
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 RONSTAN #RF45101, 40MM SINGLE ORBIT BLOCK 
RONSTAN #RF45101, 40MM SINGLE ORBIT BLOCK  by RONSTAN
40 mm single orbit block with ball bearings...more
The Chandlery #: 054_HRF45101
Our Price: CAD$40.99
                   USD$30.33
Special: CAD$28.05
               USD$20.76
You Save: CAD$12.94! This item qualifies for free shipping.
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 RONSTAN #RF45110, 40MM SINGLE/BECKET/SWIVEL ORBIT BLOC 
RONSTAN #RF45110, 40MM SINGLE/BECKET/SWIVEL ORBIT BLOC  by RONSTAN
40 mm single swivel head ball bearing Orbit block with becket...more
The Chandlery #: 054_HRF45110
Our Price: CAD$45.99
                   USD$34.03
Special: CAD$31.10
               USD$23.01
You Save: CAD$14.89! This item qualifies for free shipping.
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Displaying 1 to 20 (of 47 products) Result Pages:  1  2  3  [Next >>] 
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