Size 0 20mm Blocks

A strong, lightweight range of blocks for use on dinghies and dayboats or as lead blocks on larger craft.

Overview
Sheave size Sheave size 20mm x 8mm (25/32 x 5/16")
Max rope diameter Max rope diameter 5mm (3/16")
Max rope diameter SWL 275kg (606lbs)
Break load Break load 550Kg (1210 lbs)
Max rolling load Max rolling load (ball bearing blocks) 130kg (286lbs)
   
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.

Available with these heads and shackles...

20mm Range20mm Range20mm Range

00110 - 20mm Block 00111 - 20mm Block
00130 - 20mm Block 00131 - 20mm Block
00160 - 20mm Block 00190 - 20mm Block
00191 - 20mm Block  
  Plain sheave ball-bearing sheave Length mm
Weight (g)
        plain ball
Single size 0 blocks
Plain sleave
Ball-bearing sleave
Length
Weight (g)
Single - fixed eye 00 110 10 110 39.1 13 13
Single - fixed eye + becket 00 111 10 111 52.2 19 17
Single - Swivel 00 130 10 130 53.8 20 18
Single - Swivel + Becket 00 131 10 131 66.7 25 20
Single - Swivel (without Shackle) 00 190 10 190 39.6  16 14
Single - Swivel + Becket (without Shackle) 00 191 10 191 52.8  20 18
Single - cheek block 00 160 10 160 55 17 15
Single - stand up 00 170 10 170 47 21 23
Double size 0 blocks          
Double - fixed eye 00 210 10 210 50.4 37 33
Double - fixed eye + becket 00 211 10 211 63.5 41 37
Double - Swivel 00 230 10 230 65.8 46 38
Double - Swivel + becket 00 231 10 231 79 47 42
Triple size 0 blocks          
Triple - fixed eye 00 310 10 310 50.4 55 48
Triple - fixed eye + becket 00 311 10 311 63.5 59 52
Triple - Swivel 00 330 10 330 65.8 46 38
Triple - Swivel + Becket 00 331 10 331 79.3 64 57
Cam cleat size 0 blocks          
Triple - Fixed Eye + Becket + Cam 00 531 10 531 71.7 103 96
Triple - Swivel + Becket + Cams 00 931 10 931 88.5 110 102
00210 - 20mm Block 00211 - 20mm Block 00230 - 20mm Block 00231 - 20mm Block 00310 - 20mm Block 00311 - 20mm Block
00310 - 20mm Block 00311 - 20mm Block 00170 - 20mm Block 00531 - 20mm Block 00931 - 20mm Block  
Download drawings as PDFs.
PDF Size 0 Block - 00 110 Dimensions
PDF Size 0 Block - 00 111 Dimensions
PDF Size 0 Block - 00 130 Dimensions
PDF Size 0 Block - 00 131 Dimensions
PDF Size 0 Block - 00 160 Dimensions
PDF Size 0 Block - 00 170 Dimensions

PDF Size 0 Block - 00 190 Dimensions
PDF Size 0 Block - 00 191 Dimensions
PDF Size 0 Block - 00 210 Dimensions
PDF Size 0 Block - 00 211 Dimensions

PDF Size 0 Block - 00 230 Dimensions
PDF Size 0 Block - 00 231 Dimensions

PDF Size 0 Block - 00 310 Dimensions
PDF Size 0 Block - 00 311 Dimensions
PDF Size 0 Block - 00 330 Dimensions
PDF Size 0 Block - 00 331 Dimensions
PDF Size 0 Block - 00 511 Dimensions
PDF Size 0 Block - 00 931 Dimensions