MRC120SSingle-Row Deep Groove Ball Bearing – 100 mm Bore x 165 mm OD x 20 mm Width, Open, CN Clearance

Product Description

What this part is: MRC 120S single-row deep groove ball bearing. Bore: 100 mm. Outside Diameter: 165 mm. Overall Width: 20 mm. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Balls. Closure Type: Open both faces. Internal Clearance: CN. Material: Chrome steel. Unit Quantity: 1 Pc. Decoding the designation: 120 — the MRC size code. The trailing 20 sets the bore at 100 mm, which is what a buyer matches to the shaft journal first. S — Conrad deep groove construction. Both raceway shoulders run unbroken all the way round, so the bearing takes radial load in any direction and axial load in either direction from a single row of balls. What these specs mean in practice: A deep groove raceway is cut to roughly a third of the ball diameter, and that depth is what gives a single-row ball bearing its two-way axial capacity alongside its radial rating. Internal Clearance: CN — the normal ABMA band, sized for an ordinary interference fit on the shaft and a location or slip fit in the housing at moderate temperature rise. Closure Type: Open both faces gives the lowest running torque of any closure and lets the housing supply and change the lubricant. Material: Chrome steel through-hardens to a uniform core, which is what holds raceway geometry under repeated Hertzian contact. Quantity and configuration: Unit Quantity: 1 Pc. Single row, straight bore, open on both faces, supplied loose. Fitting notes: Mounting force is applied through the ring being fitted and is never transmitted across the balls from one ring to the other. A 100 mm bore is normally mounted with heat, taking the inner ring to around 80 °C above ambient and dropping it onto the journal. Shaft and housing seats are cleaned and measured before assembly. Cross-reference guidance: Another MRC 120S is the only match. The 100 x 165 x 20 mm envelope is MRC’s own for this size, so a substitution has to agree on bore, outside diameter, width and closure together before it will drop into the same seat. Searchable variants: 120S, 120-S, 120 S, MRC 120S.