SKF 6203-C3 Bearing

SKF 6203-C3 Bearing - The bearing your Astral pump can't run without. If there's one bearing that keeps Australian pool pumps turning, it's the 17mm 6203. This is the metric original — 17mm bore, 40mm outer, 12mm wide — with C3 clearance that gives the balls extra room to cope with heat. It's the standard shaft bearing across Astral/Hurlcon's BX, CX, CTX and E-Series, Viron and Aquatight, plus Poolrite, Reltec and Onga pumps. The C3 spec matters: a hot-running pump expands, and the extra clearance stops the bearing binding when the metal grows. Fit two and a noisy, dragging motor runs cool and quiet again. Features Australian Pump Workhorse: The standard shaft bearing across Astral/Hurlcon BX, CX, CTX and E-Series, Viron, Aquatight, Poolrite, Reltec and Onga pumps. C3 Heat Clearance: Extra internal room lets the bearing keep spinning freely as a hard-working motor heats up and expands. Deep Groove Build: Carries the radial and thrust loads of a pool pump shaft through long filtration cycles. Specifications Bore (Inner Diameter): 17mm. Outer Diameter: 40mm. Width: 12mm. Internal Clearance: C3 (greater than standard). Construction: Single-row deep groove ball bearing.