SEALMASTER TB-20R pillow block bearing
- Brand
- SEALMASTER
- Category
- Bearing housings
- Subcategory
- Y-bearing unit
- Series
- TB
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Description
SEALMASTER TB-20R belongs to pillow block bearing, 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 TB-20R and any equivalents.
A SEALMASTER TB series pillow block arrives as one complete mounted unit: a cast housing already fitted with an insert bearing, ready to be fastened down and carry a rotating shaft. It suits equipment that needs firm support together with a self-aligning bearing that tolerates minor misalignment. MR Industrial Accessories LLC supplies this line to plants, workshops and maintenance teams across the United States and in several Latin American countries.
Reading the code helps you order the right unit. The letters TB point to the pillow block series built around an insert bearing. The figure in the middle tells you the shaft size the insert is machined for. The closing letter R describes how the housing is configured. So TB-20R and TB-32R are two shaft sizes belonging to the same series, and each code covers the full assembly of housing plus insert.
Typical duty includes belt conveyors, bucket elevators, mixers, mills, centrifugal pumps and industrial fans. Food plants, cement plants, tanneries, effluent treatment plants and metalworking shops all run them. The practical gain is simpler assembly: the unit shows up pre-assembled, so you bolt the base down and lock the shaft with the insert set screws.
Selection comes down to three things: shaft diameter, the nature of the load (radial, axial or combined) and the surrounding conditions. Where dust, water or frequent washdowns are present, an insert with reinforced sealing is the better choice. Before you tighten the bolts, confirm the base is aligned and that the pillow blocks sit parallel to one another. Grease the insert with a compatible product; internal clearance stays as set, since the bearing is calibrated at the factory.
On interchangeability, insert-bearing pillow blocks from various brands frequently share standardized mounting dimensions. Even so, mixing housings and inserts from different makers is not advisable unless you first check tolerances and locking systems. The SEALMASTER TB series has counterparts in other commercial lines, so if you are replacing an existing unit, send the code stamped on the housing or the shaft dimensions and we will point you to the compatible option.
MR Industrial Accessories LLC supplies the SEALMASTER line and also manufactures split plummer block housings, roller chains and sheaves. Unsure which unit fits your equipment? Send the code or the shaft dimensions by WhatsApp or email and the team will quote it promptly, suggest equivalents and help you choose.
Dimensions
- Bore
- 1 1/4 in
Frequently asked questions
- What does the designation TB-20R mean?
- TB identifies the pillow block series with insert bearing, 20 is the shaft size and R is the housing configuration. The code covers the complete mounted unit, housing and bearing together, ready to bolt to a base.
- Can a pillow block from another brand be replaced with a SEALMASTER one?
- Often yes, since mounting dimensions tend to be standardized. It is still worth verifying tolerances and insert locking. Send the code of the old unit or the shaft dimensions and we will indicate the compatible alternative.
- How is the insert bearing of the TB series lubricated?
- With compatible grease through the lubrication channel of the housing or the insert, depending on the model. How often depends on speed, load and environment. Internal clearance is not adjusted: the bearing comes calibrated from the factory.