Traditional Barton Block Range – Series 7: 70 mm Cruiser Blocks

This range of high load cruiser bocks are of rugged construction, featuring high quality injection moulded side plates with all load-carrying components from 316 grade stainless steel. Side plates are through-bolted and riveted for added strength and security.

This good looking and versatile range is designed for use on larger cruising and racing yachts. All are designed for ease of use with our ball-bearing mainsheet traveller systems.

A comprehensive range of cam cleat, fiddle and fiddle & cam cleat versions are available.

Overview
Sheave size Single 70mm x 20mm (2 3 /4 x 3/4")

Fiddle 44/70mm x 17mm (1 3 /4 x 2 1/4" x 5/8")
Max rope diameter Max rope diameter 14mm ( 9 /16")
Break load SWL 1500Kg (3300 lbs)
Break load Break load 2500Kg (5500 lbs)
Max rolling load Max rolling load (ball bearing blocks) 875kg 1929 lbs)
   
All available with plain or ball bearing sheaves:

Plain bearing blocks
Barton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads.

Ball bearing blocks
With our unique super-low friction ball race systems, featuring acetal sheaves and delrin ball bearings, running on a large diameter centre boss. This allows us to fit more load-bearing balls, which ensure extremely low friction performance, even under high loads.

Important note - break loads
Where break and safe working loads are stated, it is assumed that all sheaves are evenly loaded as in a purchase tackle. Uneven loading, or loading of one sheave in a double or triple block, will severely affect strength quoted. If unsure, please seek further assistance.

Maximum rolling load on ball bearing blocks is the maximum free running load before ball bearings will distort.

Fixed Eye
Fixed Eye
Fixed Eye
Fixed Eye
Fixed Eye
Fixed Eye
Fixed Eye Reverse Shackle Swivel Snap Shackle Variloc Multi Head Becket
With plain attachment eye. Removable shackle that can be set in-line or at 90° to the sheave. Fully swivelling head with removable shackle. With a cast stainless steel swivelling snap shackle. Ideal for quick-release downhauls or vang tackles. Allows swivel to be locked at 30° positions in relation to sheave. Inverting the plastic locking piece converts the swivel mode. Supplied with screw pin strip shackle. All the appropriate size 7 blocks are available with or without becket.

70mm Cruiser blocks

70mm cruiser blocks
  Plain sheave   ball-bearing sheave Length mm
Weight (g)
        plain ball
Single size 7 blocks
Plain sleave
Ball-bearing sleave
Length
Weight (g)
Single - fixed eye 07 110   17 110 137 246 237
Single - fixed eye + becket 07 111   17 111 166 282 271
Single - reverse shackle 07 120   17 120 168 308 299
Single - reverse shackle + becket 07 121   17 121 195 343 337
Single - swivel 07 130   17 130 163 354 345
Single - swivel + becket 07 131   17 131 197 389 382
Single - snap shackle 07 140   17 140 168 359 350
Single - snap shackle + becket 07 141   17 141 200 394 385
Single - stand up 07 170   17 170 162 444 439
Single - stand up + becket 07 171   17 171 191 480 471
Single - variloc 07 180   17 180 163 328 317
Single - variloc + becket 07 181   17 181 192 364 348
Double size 7 blocks            
Double - reverse shackle 07 220   17 220 160 461 448
Double - reverse shackle + becket 07 221   17 221 195 491 484
Triple size 7 blocks            
Triple - reverse shackle 07 320   17 320 165 616 604
Triple - reverse shackle + becket 07 321   17 321 199 646 637
Triple - swivel 07 330   17 330 163 734 725
Triple - swivel + becket 07 331   17 331 192 770 761
Fiddle size 7 blocks            
Fiddle - reverse shackle 07 420   17 420 220 398 390
Fiddle - reverse shackle + becket 07 421   17 421 252 428 410
Fiddle - swivel 07 430   17 430 220 449 406
Fiddle - swivel + becket 07 431   17 431 248 470 361
Fiddle - snap shackle 07 440   17 440 222 448 431
Fiddle - snap shackle + becket 07 441   17 441 253 488 461
Fiddle - variloc 07 480   17 480 220 417 405
Fiddle - variloc + becket 07 481   17 481 249 439 430
Cam cleat size 7 blocks            
Fiddle - swivel + becket + cam 07 631   17 631 248 660 651
Fiddle - snap shackle + becket + cam 07 641   17 641 250 668 644
Fiddle - variloc + becket + cam 07 681   17 681 245 637 628
Triple - swivel + cam 07 930   17 930 163 770 761
Triple - swivel + becket + cam 07 931   17 931 192 806 797