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Barton Size 3 Single Fixed Ball Bearing Blocks

Barton Size 3 Single Fixed Ball Bearing Blocks

45mm diameter sheave

Delrin ball bearings

Maximum rope diameter 10mm

Break load 800Kg

Maximum rolling load 270kg


More Information

Barton Ball Bearing Blocks feature a unique super-low friction ball race system, comprising acetal sheaves and delrin ball bearings running on a large diameter centre boss.

The Barton ball bearing design fits in more load-bearing balls, and consequently promotes extremely low friction performance, even under high loads.

Barton Ball Bearing Blocks Size 3 Specification:

  • Maximum rope diameter: 10mm
  • Sheave Dimensions, sigle/double: 45mm diameter x 13mm width
  • Sheave Dimensions, fiddle: 30mm lower sheave, 58mm upper sheave diameter x 13mm width
  • SWL (Safe Working Load) 400Kg
  • Manufacturer Break Load 800Kg
  • Maximum rolling load 270kg

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

Barton Advisory on 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.

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