The Marwi CB-053 R6 2RS 3/8"x7/8"x 9/32" bearing is a sealed deep‑groove ball bearing with rubber seals on both sides (2RS). It's sized ≈ 9.5 mm inner diameter × ≈ 22.22 mm outer diameter × ≈ 7.14 mm width and typically constructed from chrome steel (CrMo), meeting ABEC‑3 precision standards
Inner diameter 3/8 " (≈ 9.5 mm), outer diameter 7/8 " (≈ 22.22 mm), width 9/32 " (≈ 7.14 mm)