FAG 7338-B-MP-UA Angular Contact Ball Bearing Overview
The 7338-B-MP-UA is an FAG single-row angular contact ball bearing in the 73..-B-MP series, supplied with a solid brass cage. It has a bore diameter of 190 mm, an outside diameter of 400 mm, and a width of 78 mm.
What are the basic dimensions and weight?
- Bore diameter (d): 190 mm
- Outside diameter (D): 400 mm
- Width (B): 78 mm
- Weight: approximately 47.9 kg
- Contact angle: 40°
Rated Performance and Speed Data
The bearing data includes radial basic dynamic and static load ratings, a radial fatigue load limit, and speed references for operating consideration.
What load and speed figures are listed?
- Basic dynamic load rating, radial (Cr): 440,000 N
- Basic static load rating, radial (C0r): 630,000 N
- Fatigue load limit, radial (Cur): 19,200 N
- Limiting speed (nG): 2,490 1/min
- Reference speed: 1,680 1/min
Mounting, Geometry, and Temperature Details
The product data lists mounting dimensions, chamfer dimensions, shoulder dimensions, pressure-cone apex distance, and operating temperature limits for the 7338-B-MP-UA bearing.
What mounting and dimensional details should be reviewed?
- Shaft shoulder minimum diameter (da min): 210 mm
- Housing shoulder maximum diameters: Da max 380 mm; Db max 389 mm
- Maximum fillet radii: shaft ra max 4 mm; housing ra1 max 2 mm
- Minimum chamfer dimensions: rmin 5 mm; r1 min 2 mm
- Shoulder diameters: D1 318 mm; d1 273 mm
- Distance between pressure-cone apexes (a): 162.8 mm
- Operating temperature range: -30 °C to 200 °C