MRC5204CFDouble-Row Angular Contact Ball Bearing – 20 mm Bore x 47 mm OD x 13/16 in Width, 30°, One Shield, C3

Product Description

What this part is

MRC 5204CF double-row angular contact ball bearing with one metal shield. Bore: 20 mm. Outside Diameter: 47 mm. Overall Width: 13/16 in (20.64 mm). Contact Angle: 30°. Number Of Rows: 2. Rolling Elements: Balls. Bore Type: Straight. Closure Type: One shield, opposite face open. Internal Clearance: C3. Material: Chrome steel. GTIN: 097741010894. Unit Quantity: 1 Pc.

Decoding the designation

5200 — MRC’s double-row angular contact light series. Two ball rows sit on opposed angled raceways inside one pair of rings.

04 — the bore code. Multiplied by five it gives Bore: 20 mm.

C — the non-filling-notch double-row construction, with outwardly convergent contact angles and a rigid design. Both raceways run unbroken, so the bearing keeps full raceway support at every ball position and resists tilting rather than accommodating it.

F — one shield on one face, the opposite face open. The shield holds the grease charge on the exposed side while the open face lets the housing feed and purge lubricant.

C3 — ABMA #3 radial clearance, wider than normal. The extra clearance absorbs the loss of running clearance that comes from a tight shaft fit and from the inner ring running hotter than the outer.

What these specs mean in practice

Contact Angle: 30° on both rows, converging outward. That geometry gives the bearing thrust capacity in both directions and real moment stiffness, so a single 5204CF locates a short overhung shaft that would otherwise need two bearings. Internal Clearance: C3 is the choice where the shaft fit is tight or the inner ring will run warm, both of which eat into running clearance. Overall Width: 13/16 in (20.64 mm) is roughly one and a half times a single-row 6204, and that width is where the moment capacity comes from. Bore: 20 mm. Outside Diameter: 47 mm.

Quantity and configuration

Unit Quantity: 1 Pc. One double-row bearing, straight bore, shielded on one face.

Fitting notes

A double-row angular contact bearing is a locating bearing and is clamped axially on both rings, with the second position on the shaft left free to float. The shielded face is normally turned toward the contaminated side of the housing. Mounting force is applied through the ring being fitted and is never transmitted across the balls.

Interchange guidance

The ISO interchange is a 3204 in the same one-shield, C3 execution, and the carton carries the 3204 cross itself. A substitution matches on bore, outside diameter, width, contact angle, closure and clearance together.

Searchable variants

5204CF, 5204-CF, 5204 CF, 5204CFC3, 5204CF-H501, 3204, MRC 5204CF.