Comparison : Item # 7508 DLG, 0.5000 Inch Bearing Dimension (d) NICE Precision 7500 Series Inch-Style Ground Ball Bearing
Item # 7510 DLG, 0.6250 Inch Bearing Dimension (d) NICE Precision 7500 Series Inch-Style Ground Ball Bearing
Item # 7512 DLG, 0.7500 Inch Bearing Dimension (d) NICE Precision 7500 Series Inch-Style Ground Ball Bearing
Item # 7514 DLG, 0.8750 Inch Bearing Dimension (d) NICE Precision 7500 Series Inch-Style Ground Ball Bearing
Item # 7516 DLG, 1.0000 Inch Bearing Dimension (d) NICE Precision 7500 Series Inch-Style Ground Ball Bearing