Browning Normal-Duty Flange Unit - 2 Bolt Setscrew Lock (VF2S-228)
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- Cast iron flanged housing for vibration damping and structural rigidity
- Normal-duty, double-sealed ball bearing insert for applications with moderate radial loads and thrust or combination loads
- Contact seals keep lubricant in and contaminants out and flingers provide extra sealing protection
- Setscrew lock for a three-point contact hold on the shaft
- Grease fitting on the housing for reapplying lubricant
This Browning VF2S series normal-duty flange unit has a cast iron housing with two bolt holes, contact and flinger seal, and setscrew lock. It is designed for mounting onto bearing surfaces perpendicular to the shaft axis. The housing has a semi-solid base to provide mounting stability and is made of cast iron for rigidity and vibration damping. The double-sealed, deep-groove radial ball bearing insert in the housing is made of 52100 chromium steel and is rated "normal duty" for applications with moderate radial loads and thrust or combination loads. For increased shaft support and holding power, the bearing has an extended inner ring and a zone-hardened inner race. A rivet on the outer ring prevents rotation of the ring in the housing, reducing heat buildup and prolonging the bearing life. This self-aligning bearing has a convex sphered outer surface that compensates for misalignments, and honed races for quiet operation. Nitrile rubber contact seals on both sides of the bearing retain lubricant applied at manufacture and help keep contaminants out. For added protection, flingers on the inner ring deflect contaminants away from the seals. The bearing locks onto the shaft with two setscrews spaced 120 degrees apart for a three-point contact hold. This lock type minimizes ring distortion and vibration and is suitable for low to moderate speed applications where the shaft rotates in a single or reversing direction. This bearing unit has a grease fitting on the housing outer surface for reapplying lubricant. Flanged bearing units are suitable for use in industrial and commercial applications including conveyors, fans and blowers, construction machinery, and processing equipment, among many others.
Mounted bearings combine a bearing mounted inside a housing unit. The bearing housing replaces the need for a casting or weldment to position the bearing securely for reliable operation, and its design determines the type of insert bearing. Insert bearings use rolling elements (ball, cylindrical, spherical, barrel, needle, spindled, or tapered) to maintain the separation between moving parts to reduce rotational friction, and to support radial and axial loads. Available in a variety of materials and mounting configurations, mounted bearings can be one- or two-piece, they can have an extended inner ring and locking device, and they can have seals and end caps that retain lubrication and protect the working parts of the bearing from environmental debris. Mounted bearings support shafts in a variety of mounting configurations (flange block, hanger, pillow block, and take-up block), and are used in a range of applications from light duty shaft guidance on conveyors to road building equipment and crushers.
Browning, a division of Emerson Industrial Automation, manufactures V-belt drives, gearing, bearings, and other power transmission components. The company, founded in 1886, is headquartered in Maysville, KY.
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