Sealmaster SRF-20R Standard-Duty Flange Unit 2 Bolt Rubber Mounted Felt Seals...

Description

Sealmaster SRF-20R Standard-Duty Flange Unit, 2 Bolt, Rubber Mounted, Felt Seals, Setscrew Locking Collar, Pressed Steel Housing, 1-1/4" Bore, 5-3/8" Overall Length, 4-3/8" Bolt Hole Spacing Width, ±2 Degrees Misalignment Angle
Pressed steel, rubber-mounted flanged housing for vibration, shock, and noise control
Standard-duty, deep-groove ball bearing insert for applications with moderate radial loads and light to moderate thrust or combination loads
Felt labyrinth seals on both sides of the bearing keep lubricant in and contaminants out and flingers provide extra sealing protection
Setscrew lock for a three-point hold on the shaft
Extended inner ring for increased shaft support
This Sealmaster SRF standard-duty flange unit has a pressed steel housing with two bolt holes, felt seals, and setscrew locking collar. It is designed for mounting onto bearing surfaces perpendicular to the shaft axis. The housing is made of pressed steel and rubber for light-duty applications that do not require rigid mounting. The rubber mounting reduces vibration, shock, and noise. The double-sealed, deep-groove ball bearing cartridge insert in the housing is rated "standard duty" for applications with moderate radial loads and light to moderate thrust or combination loads. The bearing is made of vacuum degassed 52100 chrome steel, and the inner and outer races are coated with black oxide for corrosion resistance. The inner ring is extended to provide extra shaft support. A pin and dimple anti-rotation 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. Low-friction felt labyrinth 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 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. 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. Sealmaster manufactures bearings and bearing accessories. The company, founded in 1938 and headquartered in Elsmere, KY, meets International Organization for Standardization (ISO) standard 9001.
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