FAG 7256-B-MP
Angular contact ball bearing 72..-B-MP, single row, solid brass cage
Main Dimensions & Performance Data
Mounting dimensions
FAG 7256-B-MP Angular Contact Ball Bearing
The 7256-B-MP is an FAG angular contact ball bearing in the 72..-B-MP series. The supplied data identifies it as a single-row bearing with a solid brass cage and a 40° contact angle.
What are the basic dimensions of the 7256-B-MP?
The bearing has a bore diameter of 280 mm, outside diameter of 500 mm, and width of 80 mm. Its listed weight is 69.1 kg.
7256-B-MP Load and Speed Data
The product data lists radial load ratings, a radial fatigue load limit, and speed values for the 7256-B-MP. These values are provided as published bearing data rather than application-specific guidance.
- Basic dynamic load rating, radial (Cr): 500,000 N
- Basic static load rating, radial (C0r): 880,000 N
- Fatigue load limit, radial (Cur): 23,300 N
- Limiting speed (nG): 1,940 1/min
- Reference speed (nϑr): 1,350 1/min
What contact angle does this bearing use?
The listed contact angle is 40°. The distance between the apexes of the pressure cones is listed as 203.6 mm.
Mounting, Geometry, and Temperature Details
The 7256-B-MP includes specified mounting and geometry dimensions for shaft and housing interfaces. The stated operating temperature range is from -30 °C to 200 °C.
What mounting and geometry values are supplied?
The supplied mounting and geometry data include the following:
- Shaft shoulder diameter minimum (da min): 300 mm
- Housing shoulder diameter maximum (Da max): 480 mm
- Housing shoulder diameter maximum (Db max): 489 mm
- Maximum shaft fillet radius (ra max): 4 mm
- Maximum housing fillet radius (ra1 max): 2 mm
- Minimum chamfer dimensions: rmin 5 mm; r1 min 2 mm
- Shoulder diameters: D1 413 mm on the outer ring wide side face; d1 368 mm on the inner ring wide side face
