FAG 7218-B-XL-MP-UA Angular Contact Ball Bearing Overview
The 7218-B-XL-MP-UA is an FAG single-row angular contact ball bearing in the 72..-B-XL-MP series. The supplied 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 this bearing?
- Bore diameter (d): 90 mm
- Outside diameter (D): 160 mm
- Width (B): 30 mm
- Weight: approximately 2.47 kg
7218-B-XL-MP-UA Load and Speed Data
The bearing data includes radial load ratings, fatigue load limit, and speed values. These values can be used with the manufacturer's engineering criteria when evaluating a specific arrangement.
What load and speed figures are provided?
- Basic dynamic load rating, radial (Cr): 114,000 N
- Basic static load rating, radial (C0r): 98,000 N
- Fatigue load limit, radial (Cur): 6,100 N
- Limiting speed (nG): 7,200 1/min
- Reference speed (nϑr): 4,550 1/min
Mounting, Geometry, and Temperature Details
The supplied data lists mounting shoulder dimensions, fillet limits, chamfer dimensions, ring shoulder geometry, pressure-cone distance, and operating temperature boundaries for the 7218-B-XL-MP-UA bearing.
What mounting and dimensional values should be reviewed?
- Shaft shoulder minimum diameter (da min): 101 mm; housing shoulder maximum diameter (Da max): 149 mm.
- Additional housing shoulder dimension (Db max): 154.4 mm.
- Maximum fillet radii: shaft ra max 2 mm; housing ra1 max 1 mm.
- Minimum chamfer dimensions: rmin 2 mm and r1 min 1 mm.
- Geometry: D1 133.4 mm, d1 117.5 mm, a 67.4 mm, and contact angle α 40°.
- Operating temperature range: -30 °C to 150 °C.