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Square Flange
Sealmaster SF-28T
Sealmaster Mounted Cast Iron Four Bolt Flange Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - SF-28T
SF-28 is also available as
Dynamic Load Rating (lb)
7,901
Rolling Element
Ball Bearing
Bore Shape
Straight
Overall Width (in)
5.38
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
- Felt labyrinth seal and flinger for dry , dusty environment
- 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 , dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | Overall Length | 5 3/8 | 136.5 |
| D | 1 9/16 | 39.7 | |
| G | Foot Height | 9/16 | 14.3 |
| H | 2 7/64 | 53.6 | |
| J | 2 | 50.8 | |
| L | 2 15/16 | 74.6 | |
| M | 4 21/64 | 109.9 |
Values as printed for SF-28T. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Overall Width (in)
- 5.38
- Bolt Size (in)
- 9/16
- Pilot Configuration
- No Pilot
- Overall Height (in)
- 2.167
- Housing Construction
- One Piece
- Overall Length (in)
- 5.38
- Outer Ring Land Profile
- Standard
- Misalignment Type
- Static Only
- Bore Size - Inch
- 1.75Shaft size chart
- Housing Color
- Black
- Foot Height (in)
- 0.56
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 2.06
- Housing Type (Product Selection)
- Flange, Four Bolt
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Flange Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Locking Collar Outside Diameter (in)
- 3
- Ability to Relubricate
- Yes
- Housing Material
- Cast Iron
- Cage Type
- Land Riding Retainer
- Lubricant
- Lithium Complex NLGI 2 Grease
- Grease Fitting Thread Size
- 1/4-28
- Radial Clearance
- Standard
- Housing Backside Inner Diameter
- 3.88
- Bearing Type
- Standard Duty
- Bearing Insert Finish
- Black Oxide
- End Cap Available
- No
- Size Code
- 2-111
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Maximum Speed (RPM)
- 5300
- Dynamic Load Rating (lb)
- 7,901
- Inner Ring Outside Diameter (in)
- 2.307
- Static Load Rating (lb)
- 5,139
- Bolt Spacing (in)
- 4.125
- Bearing Insert Material
- 52100 Bearing Steel
- Housing Coating
- Powder Coated
- Fixed vs. Expansion
- Fixed
- Shaft Locking Type
- Concentric
- Max Operating Temperature (F)
- 220
- 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
- SF-28T
- Mfg. Part Numberi
- 705435
- GDS #i
- GDS-116904
- Categoryi
- Square Flange
- UPCi
- 662461030073
- Inserti
- 2-112T
SF-28 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| SF-28 | Base configuration | $171.08 | View |
| SF-28C | Contact seal | $212.05 | View |
| SF-28TThis part | Skwezloc concentric locking collar | $222.84 | |
| SF-28TC | Skwezloc concentric locking collar, contact seal | $216.34 | View |
| SF-28 DRT | High-contamination seal | $424.32 | View |
| SF-28 HI | High-performance high temperature | $1,213.94 | View |
| SF-28 HT | High temperature | $638.45 | View |
| SF-28 RM | Reduced maintenance | $955.29 | View |
| SF-28T DRT | Skwezloc concentric locking collar, High-contamination seal | $720.06 | View |
| SF-28T HT | Skwezloc concentric locking collar, High temperature | $1,055.24 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 705320 | 2-112T | $179.46 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster SF-28T, manufacturer article number 705435. Its UPC is 662461030073.
