ZUCPAS207-21-PBT Zinc Plated Tapped Base 1 5/16Mounted Bearing Linear Motion Systems - 3 inch (3") it features a 10mm U-groove

it features a 10mm U-groove for precision tracking

HJ162416 Bearing

Perfect for spinning rings

Dimensions (inches) h a e b s1 s2 g w Bi n 1-11/16" 6-3/8" 4-11/16" 1-7/8" 17/32" 2-3/32" 11/16" 3-9/32" 1-1/2" 5/8"

they block out dust and run cool at high RPMs

ZUCPAS207-21-PBT Zinc Plated Tapped Base 1 5/16Mounted Bearing Linear Motion Systems - 3 inch (3") it features a 10mm U-grooveThis item will be shipped within One Week Returns Subject to 15% restocking Fee ZUCPAS207 21 PBT Thermoplastic Tapped Base Pillow Block Zinc Chromate Plated Insert 1 5 16" inch Inner Diameter Ball Bearing ZUCPAS207 21 PBT Thermoplastic Tapped Base Pillow Block Ball Bearing, bearing is Zinc Chromate Plated Insert, bearing has solid base housing construction, bearing is wide inner ring with set screws, bearing is relubricatable unit with anti rotation