Comparison : Item # E6-20EA-36, CEMA E Self-Aligning Troughing Idler - 6" Diameter
Item # E6-20EA-42, CEMA E Self-Aligning Troughing Idler - 6" Diameter
Item # E6-20EA-48, CEMA E Self-Aligning Troughing Idler - 6" Diameter
Item # E6-20EA-54, CEMA E Self-Aligning Troughing Idler - 6" Diameter
Item # E6-20EA-60, CEMA E Self-Aligning Troughing Idler - 6" Diameter