FAG 7321-B-XL-MP-UA Angular Contact Ball Bearing Overview
The 7321-B-XL-MP-UA is an FAG single-row angular contact ball bearing in the 73..-B-XL-MP series. The product data identifies it as an X-life bearing with a solid brass cage and a 40° contact angle.
What are the basic dimensions of the 7321-B-XL-MP-UA?
- Bore diameter: 105 mm
- Outside diameter: 225 mm
- Width: 49 mm
- Weight: 9.298 kg
Load and Speed Data for the 7321-B-XL-MP-UA
The supplied performance data lists radial load ratings and reference speed values for the bearing. These figures can be used when comparing the bearing against the requirements of a specific arrangement.
What load and speed values are documented?
- Basic dynamic load rating, radial (Cr): 225,000 N
- Basic static load rating, radial (C0r): 214,000 N
- Fatigue load limit, radial (Cur): 11,500 N
- Limiting speed (nG): 5,100 1/min
- Reference speed (nϑr): 3,400 1/min
Mounting, Geometry, and Temperature Details
The bearing data includes mounting dimensions, ring geometry, chamfer dimensions, and an operating temperature range. Installation clearances and mating-part geometry should be checked against these values before mounting.
What mounting and dimensional details should be reviewed?
- Mounting dimensions: da min 119 mm; Da max 211 mm; Db max 218 mm; ra max 2.5 mm; ra1 max 1 mm.
- Additional geometry: rmin 3 mm; r1 min 1.1 mm; D1 178.9 mm; d1 154 mm; a 93.7 mm.
- Temperature range: Tmin -30 °C to Tmax 150 °C.