FAGSingle-Row Barrel Roller Bearing – 45 mm ID, 100 mm OD, 25 mm Width, Self-Aligning, Polyamide Cage

Product Description

What this part is

FAG 20309-TVP single-row barrel roller bearing. Bore Diameter: 45 mm. Outside Diameter: 100 mm. Overall Width: 25 mm. Rolling Elements: Barrel Roller. Number Of Rows: 1. Bore Type: Straight. Closure Type: Open. Dynamic Load Rating: 87,000 N. Static Load Rating: 94,000 N. Limiting Speed: 6,500 rpm. Cage Material: Polyamide. Cage Type: Window cage. Precision Class: RBEC 1 / P0. Internal Clearance: CN. Item Weight: 0.881 kg (1.94 lb). Bearing Material: Chrome steel. Series: 203. Base Number: 20309. Unit Quantity: 1 Pc.

Decoding the designation

203 — single-row barrel roller bearing to DIN 635-1. One row of convex barrel-shaped rollers runs on a spherical raceway ground into the outer ring, so the inner ring and roller set swivel inside the outer ring.

09 — bore code. Bore Diameter: 45 mm.

T / TVP — glass-fibre reinforced polyamide window cage.

Searchable forms of the designation: 20309T, 20309-TVP, 20309TVP, 20309 T, 20309.

What these specs mean in practice

Dynamic Load Rating: 87,000 N. Static Load Rating: 94,000 N. Fatigue load limit: 8,600 N. A static rating above the dynamic rating is the normal pattern for a roller bearing whose long line contact spreads a stationary load.

The spherical outer raceway lets the bearing take shaft-to-housing misalignment and shaft deflection without edge-loading the rollers, which is the reason a barrel roller is chosen for long shafts, fans, conveyor pulleys and vibrating screens.

A single row of barrel rollers carries heavy radial load. Axial location comes from a separate bearing in the arrangement.

Limiting Speed: 6,500 rpm. Operating temperature range published by Schaeffler: −30 °C to +120 °C.

A barrel roller bearing is self-aligning and has no contact angle.

Mounting data

Bore Diameter: 45 mm, straight. Outside Diameter: 100 mm. Overall Width: 25 mm. Shaft shoulder diameter da 54 mm minimum. Housing shoulder diameter Da 91 mm maximum. Maximum recess radius ra 1.5 mm. Minimum chamfer dimension r 1.5 mm. Outer ring bore diameter D1 85.2 mm.

Quantity and configuration

Unit Quantity: 1 Pc. One complete bearing, open on both faces, straight bore, mounted directly on a parallel shaft seat.

Interchange guidance

FAG 20309-TVP is the full designation of this bearing. FAG 20309-K-TVP is a related part in the same 45 x 100 x 25 mm size with a 1:12 tapered bore for an adapter sleeve.