FAGSingle-Row Barrel Roller Bearing, 25 x 62 x 17 mm, Self-Aligning, Cylindrical Bore, Open, Non-Locating, 1 Pc

Product Description

What this part is

FAG 20305 single-row barrel roller bearing. Brand: FAG. Manufacturer Part Number: 20305. Base Number: 20305. Bearing Type: single-row self-aligning barrel roller bearing. Series: 203. Bore: 25 mm. Outside Diameter: 62 mm. Overall Width: 17 mm. Bore Type: straight cylindrical. Number of Rows: 1. Rolling Elements: barrel-shaped rollers. Closure Type: open. Internal Clearance: normal (CN). Expansion Type: non-locating (floating). Design Units: Metric. Unit Quantity: 1 Pc.

Published ratings and mounting data

Dynamic Load Rating: 36 kN radial. Static Load Rating: 35 kN radial. Limiting Speed: 9 800 rpm. Item Weight: 0.28 kg. Precision: normal class. Figures as published for the FAG 20305-TVP.

Decoding the designation

203: FAG’s single-row barrel roller series, catalogued as Tonnenlager, running one row of barrel rollers on a concave outer raceway. Bore code 05: 25 mm bore. The designation carries no K, so the bore is straight cylindrical. FAG’s current catalogue build of this bearing is the 20305-TVP, in which TVP is the glass-fibre reinforced polyamide cage.

What these specs mean in practice

Line contact between a barrel roller and its raceways gives 36 kN dynamic capacity on a 25 mm bore, comfortably more than double what a self-aligning ball bearing of the same size manages, while the concave outer raceway lets the shaft run out of line. The rollers move axially in the outer ring by design, so the bearing serves as the floating support in a two-bearing arrangement, with a second bearing locating the shaft.

That combination suits heavy, slow, misaligned duty: crushers, vibrating equipment, calenders, presses and mill drives. A static rating of 35 kN, nearly level with the dynamic figure, means the bearing takes standing and shock loads that would flatten a ball bearing’s raceways.

The bore is straight cylindrical and mounts direct on the shaft. Adapter sleeves belong to the K (1:12) tapered-bore versions.

Quantity and configuration

Unit Quantity: 1 Pc. A complete bearing ships: outer ring, single roller row, cage and inner ring.

Interchange guidance

The 25 x 62 x 17 mm barrel roller envelope is standard, so FAG 20305-TVP, SKF 20305 and NKE 20305-TVP share the same seat. The 21305 double-row spherical roller bearing occupies the identical 25 x 62 x 17 mm envelope and carries thrust in both directions, which makes it a related size on the same envelope with a different load capability. Barrel roller bearings are also catalogued as Tonnenlager and as single-row spherical roller; the type name is barrel roller. Searchable variants of this number are 20305, 20305TVP, 20305-TVP, 20305 TVP, 20305.TVP and 20305TVPB.