Welcome to Defender Canada! 
Barton Size 7 Ball Bearing Single Block
$72.71 - $211.75
Barton Size 7 Ball Bearing Single Block Item # 1139472
Description
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.
Specifications:
- Sheave Size: 2 3/4" (70 mm)
- Sheave: Ball Bearing
- Maximum Rope Diameter: 9/16" (14 mm)
- Safe Working Load: 1,929 lbs (875 kg)
- Breaking Load: 5,512 lbs (2,500 kg)