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This 6311-ZZ ball bearing is a high-precision premium quality deep groove shielded 55x120x29 ball bearing made to ABEC 3 precision standards from AXIS
The superior quality stamped steel housing encases a performance C3 precision 1-1/4" insert bearing that utilizes an eccentric locking collar for securing onto a shaft
What separates this double 2BK36 pulley from the others is that it is made using a high grade-35 cast iron
For more information on a double groove 2BK190H pulley
BK32 Pulley 3/4" Bore 10mm Stock Bore This 6311-ZZ ball bearing isThis BK32 Pulley 3 4" bore is directly interchangeable with other manufacturers, is 3. 35" in diameter, and is manufactured in accordance with ARPM Standard IP20 for safe operation. It works with belt sizes A, 4L, B, 5L, AX, BX, AA, and BB. What separates this BK32 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 the grade 35 cast iron offers a higher tensile
