What sets this 6311 bearing apart from others is the ABEC 3 precision standard that this bearing is made to
Bearing Insert: SA 206-18
#120 Roller Chain Tensioner
this #200 chain tensioner guides
Something that is notable about this 10B34 sprocket is that it fully meets all ISO Standards
3TB184 Sheave three-groove 18.75" OD 100B16 Sprockets What sets this 6311 bearingThis 3TB184 Pulley uses a Q1 series bushing, is directly interchangeable with other manufacturers, is 18. 75" in diameter, and is manufactured in accordance with ARPM Standard for safe operation. With B series TB pulleys you can use A, 4L, B, 5L, AX, BX, AA, and BB belts. What separates this three groove 3TB184 pulley from the others is that it is made using a high grade 35 cast iron, is phosphate coated, painted, and balanced at the factory. Using