FAGN311E.M1.C3Cylindrical Roller Bearing — 55 mm Bore, 120 mm OD, 29 mm Width, N Design, Machined Brass Cage, C3

Product Description

What this part is:

FAG N311E.M1.C3 is a single row cylindrical roller bearing of N design with a machined brass cage and C3 internal clearance. Unit Quantity: 1 Pc. Straight cylindrical bore. Separable design: the outer ring with the roller and cage assembly comes apart from the plain inner ring. Open on both faces, with no seals, shields, snap ring or outer ring lubrication holes.

Decoding the designation:

N — FAG design with two integral guide ribs on the outer ring and a plain inner ring without ribs; non-locating.

3 — dimension series 3, the medium section.

11 — ISO bore code; 11 x 5 = 55 mm bore.

E — reinforced X-life design with a larger roller complement and increased load rating over the standard version.

M1 — machined brass cage.

C3 — radial internal clearance greater than normal.

Specifications:

Bore Diameter: 55 mm (2.165 in). Outside Diameter: 120 mm. Overall Width: 29 mm. Number Of Rows: 1. Rolling Elements: Cylindrical Roller. Bore Type: Straight. Cage Material: Machined brass. Internal Clearance: C3. Closure Type: Open. Series: N3. Contact Angle: none (radial bearing).

Dimensions and mounting:

The N design is a non-locating bearing: the rings displace axially relative to one another within the bearing, so it carries radial load and provides no axial location. Related designs in this family are NJ, which locates in one direction, and NUP, which locates in both.

Compatibility and replacement:

Cross-references: SKF N 311 ECM/C3 (same design, brass cage, C3); FAG NU311-E-M1-C3 (ribs on inner ring, plain outer); FAG NJ311-E-M1-C3 (locates one direction); FAG NUP311-E-M1-C3 (locates both ways). An NU311E is the mirror design, with ribs on the inner ring and a plain outer ring.

Frequently asked questions:

What are the size and design of the FAG N311E.M1.C3?

55 mm bore, 120 mm outside diameter, 29 mm width, single row, N design with ribs on the outer ring.

What do the E, M1 and C3 suffixes mean?

E is the reinforced X-life design, M1 is a machined brass cage and C3 is radial internal clearance greater than normal.

Does this bearing locate the shaft axially?

No. The N design is non-locating and carries radial load only.