NACHIFE32211JP4Tapered Roller Bearing Cone and Cup – 55 mm Bore, 100 mm OD, 26.75 mm Width, Flanged Outer Ring, P4 Precision

Product Description

What this part is

Nachi F-E-32211-J-P4 single-row metric tapered roller bearing, cone and cup together. Bore 55 mm, outside diameter 100 mm, overall width 26.75 mm. Series: 322. Flanged outer ring, straight bore, pressed steel cage. Precision Class: P4. Country of origin: Japan.

Decoding the designation

32211: single-row metric tapered roller bearing on a 55 mm bore, 322 dimension series — the steep-angle section, which carries a higher proportion of thrust than a 302 or 303 series bearing of the same bore. F: flange on the outer ring. E: high-capacity internal design. P4: precision class, giving radial and axial runout held to a few microns. J is an order-code position recorded here as a searchable part-number form.

Published ratings

Dynamic load rating: 116 kN. Static load rating: 154 kN. Limiting speed: 5,300 rpm. Operating range: −40 °C to 120 °C. Mass: 1.76 lb. Running accuracy, radial and axial runout: P4.

What these specs mean in practice

A tapered roller bearing takes heavy radial load and thrust in one direction at the same time, and the 322 steep-angle series shifts that balance further toward thrust. The flange on the outer ring locates the cup axially against a plain housing bore, which removes the need for a machined shoulder or a separate retaining ring. P4 accuracy is well above the standard class for tapered rollers and belongs on gearbox and machine-tool positions where shaft location and runout are held tightly. The static rating sitting above the dynamic rating is normal for tapered roller bearings.

Quantity and configuration

Cone and cup together, matched as one bearing. Unit quantity: 1 Set.

Fitting notes

Straight 55 mm bore. The cup flange seats against the housing face; the cone is pressed on to the shaft seat. Setting is by axial adjustment against the mating position in the arrangement.

Interchange guidance

ISO base designation: 32211. Searchable forms of the number: FE32211JP4, F-E-32211-J-P4, F E 32211 J P4, FE32211J, 32211.