
SEALMASTER SF-20RT flange bearing 4 holes
- Brand
- SEALMASTER
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- SF-T
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Description
SEALMASTER SF-20RT belongs to flange bearing 4 holes, part of our Bearing housings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for SF-20RT and any equivalents.
The SEALMASTER SF-T series is a Y-bearing housing with insert built around a 4-bolt flange, so the shaft is carried on a rigid, firmly anchored base. The sealing arrangement and the cast housing suit plants where dust, humidity and moderate radial loads are part of daily operation. MR Industrial Accessories supplies this line to maintenance and purchasing teams in the United States and Latin America.
Reading the code is the fastest way to confirm you have the right unit. In SF-20RT, the SF prefix marks a flanged housing supplied with an insert bearing, the figure that follows is the nominal shaft size in millimeters (20 mm here, 32 mm in SF-32RT), and the RT suffix covers construction details of the series, including how the insert is sealed and locked to the shaft. Once you know the shaft size, the rest of the designation tells you the configuration.
Typical duty includes belt conveyors, agricultural implements, food processing lines, ventilation fans and packaging equipment. The four bolt holes let the housing sit flat on fabricated steel or concrete, which keeps the shaft steady at moderate running speeds. Warehouses, manufacturing plants and agro-industrial sites are the usual homes for these units, where uptime and simple maintenance matter more than anything else.
Selection comes down to three things: shaft diameter, the direction of the load (radial, axial or a combination) and the environment around the bearing. The insert seal holds grease in and keeps contaminants out, so humid or dusty areas call for a higher-protection seal option. At installation, line up the flange and the shaft so no extra stress is introduced, apply lubricant as specified, and lock the insert to the shaft with the set screws or locking device at the correct torque.
On interchangeability, an SF-T housing can be matched with units from other manufacturers when the flange bolt pattern, shaft diameter and load capacity line up. Compare the mounting dimensions and the insert style before committing. If you send the code of the housing you are replacing, our team can point you to the equivalent in this series or another suitable option.
Dimensions
- Número de producto
- 19487
- Bore
- 1 1/4 in
Frequently asked questions
- What does the code SF-20RT tell me?
- SF means a flanged housing with an insert bearing, 20 is the shaft diameter in millimeters, and RT describes series construction details such as the seal type and locking method. SF-32RT follows the same logic for a 32 mm shaft.
- Will this housing hold up in a dusty or damp plant?
- The SF-T series uses seals that shield the insert from contaminants. Where conditions are severe, ask about versions with heavier sealing, and we will recommend one for your application.
- How can I confirm it fits the housing I already run?
- Compare the flange dimensions, shaft diameter and insert type. Send us the code of your current housing and we will identify the equivalent in the SF-T series or a compatible alternative.

