MRC312SFDeep Groove Ball Bearing – 60 mm ID, 130 mm OD, 31 mm Width, One Metal Shield, Pressed Steel Cage

Product Description

What this part is: MRC 312-SF Conrad deep groove ball bearing. Bearing Type: Conrad single-row deep groove. Bore: 60 mm (2.3622 in). Outside Diameter: 130 mm (5.1181 in). Overall Width: 31 mm (1.2205 in). Closure Type: one metal shield, the opposite face open. Number Of Rows: 1. Rolling Elements: ball. Contact Angle: 0°. Cage Material: pressed steel. Dynamic Load Rating: 81,900 N (18,400 lbf). Static Load Rating: 52,000 N (11,700 lbf). Limiting Speed: 5,000 rpm on grease, 6,000 rpm on oil. Maximum Shaft or Housing Fillet Radius: 2.0 mm (0.08 in). Item weight: 4.0 lb (1.81 kg). Series: MRC 300-S Medium. Decoding the designation: 3 — the MRC 300-S Medium Series. 12 — bore code, multiplied by five to give Bore: 60 mm. S — Conrad deep groove, no filling notch. F — one shield. What these specs mean in practice: Bearing Type: Conrad deep groove with full shoulders on both rings and uninterrupted raceway grooves. That geometry gives equal load capacity in either direction and lets the bearing take substantial thrust in both directions alongside its radial load. Series: 300-S Medium. The heavier section around a 60 mm bore is what carries 81.9 kN dynamically where a 200-S Light bearing on the same bore carries considerably less. Medium series is the choice for heavy radial load with two-directional thrust. Closure Type: one metal shield. The shielded face keeps grease in and coarse contamination out; the open face lets a housing feed lubricant to the bearing or lets the assembler pack it by hand. Maximum Shaft or Housing Fillet Radius: 2.0 mm — the largest corner radius on the shaft shoulder or in the housing bore that the bearing corner will clear. Quantity and configuration: Unit Quantity: 1 Pc. One bearing, shielded on one face. Interchange guidance: Searchable variants of the number: 312SF, 312-SF, 312 SF, 312-S-F, MRC 312SF. The single-shielded 60 x 130 x 31 mm deep groove bearing is also written 6312-Z or 6312Z. MRC 312-S is the same bearing open, 312-SFF carries two shields and 312-SZZ two synthetic rubber seals.