Pillow Blocks
Sealmaster TB-28T
GOLD BRGS UNIT MATL
TB-28 is also available as
Dynamic Load Rating (lb)
7,901 lb
Bore Size - Inch
1.75
Thread Size
1/2-13
Base Width (in)
2 in
Need help confirming fit? Send us the current part number, shaft size, housing photo, or equipment model.
Product Overview
- Powder coated epoxy cast iron housing with extended inner ring bearings
- Skwezloc® concentric locking for near perfect concentricity
- Unique land riding retainer design provides superior pocket clearance that allows for 360° grease circulation around the rolling elements resulting in better retained and utilized lubrication.
- Sealmaster® exclusive lock pin and dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | 2 1/8 | 54.0 | |
| B | 5 | 127.0 | |
| C | 3 3/4 | 95.3 | |
| D | 2 | 50.8 | |
| H | 4 1/4 | 108.0 | |
| J | 2 | 50.8 | |
| K | 1 1/4 | 31.8 | |
| L | 2 15/16 | 74.6 |
Values as printed for TB-28T. Verify critical dimensions before ordering.
- Bore Size - Inch
- 1.75Shaft size chart
- Thread Size
- 1/2-13
- Base Width (in)
- 2 in
- Housing Type (Product Selection)
- Pillow Block, Tapped Base
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Overall Height (in)
- 4.25 in
- Overall Length (in)
- 5 in
- Overall Width (in)
- 2 in
- Bore Diameter (in)
- 1.75 in
- Thread Depth (in)
- 0.75 in
- Base to Center Height (in)
- 2.125 in
- Length Through Bore (in)
- 2.000 in
- Centerline to Outermost Bearing Face (in)
- 1.250 in
- Bolt Spacing (in)
- 3.750 in
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Cage Material
- PPS - Polyphenylene Sulfide
- Housing Type
- Pillow Block, Tapped Base
- Seal Type
- Felt Labyrinth Seal
- Housing Style
- Pillow Block
- Ability to Relubricate
- Yes
- Inner Race Heat Treat Method
- Zone-Hardened
- Locking Collar Outside Diameter (in)
- 2.938 in
- Housing Coating
- Powder Coated
- Housing Material
- Cast Iron
- Size Code
- 2-111
- Bearing Insert Finish
- Black Oxide
- Cage Type
- Land Riding Retainer
- Dynamic Load Rating (lb)
- 7,901 lb
- Maximum Speed (RPM)
- 5300 rpm
- Inner Ring Outside Diameter (in)
- 2.297 in
- Radial Clearance
- Standard
- Shaft Locking Type
- Concentric
- End Cap Available
- No
- Max Operating Temperature (F)
- 220 °F
- Lubricant
- Lithium Complex NLGI 2 Grease
- Fixed vs. Expansion
- Fixed
- Static Load Rating (lb)
- 5,139 lb
- Grease Fitting Thread Size
- 1/4-28
- Bearing Type
- Standard Duty
- Base Length (in)
- 5.000 in
- Bearing Insert Material
- 52100 Bearing Steel
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Housing Width (in)
- 2 in
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- TB-28T
- Mfg. Part Numberi
- 705556
- GDS #i
- GDS-116988
- Categoryi
- Pillow Blocks
- UPCi
- 662461031100
- Inserti
- 2-112T
- Country of Origini
- United States of America
TB-28 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| TB-28 | Base configuration | $275.26 | View |
| TB-28C | Contact seal | $275.26 | View |
| TB-28TThis part | Skwezloc concentric locking collar | $322.34 | |
| TB-28 DRT | High-contamination seal | $1,614.80 | View |
| TB-28 HI | High-performance high temperature | $1,642.73 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 705320 | 2-112T | $179.46 |
Common Questions
What is the bore diameter of the TB-28T?
The TB-28T has a bore diameter of 1.75 in. The specification table above lists every published dimension for this part.
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster TB-28T, manufacturer article number 705556. Its UPC is 662461031100.
