Pillow Blocks
Sealmaster SP-28
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - SP-28
SP-28 is also available as
- SP-28$342.04
- SP-28T$412.89
- SP-28TC$1,169.46
Dynamic Load Rating (lb)
7,901
Housing Base
Solid
Rolling Element
Ball Bearing
Bore Shape
Straight
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
- Zone hardened inner ring with 120° spacing setscrew locking with diamond faceted setscrews
- 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 | Base to Center Height | 2 3/8 | 60.3 |
| B | 8 3/4 | 222.3 | |
| C | Bolt Spacing Min | 5 7/8 | 149.2 |
| C (max) | Bolt Spacing Max | 7 1/8 | 181.0 |
| D | Base Width | 2 3/8 | 60.3 |
| G | Foot Height | 3/4 | 19.1 |
| H | 4 5/8 | 117.5 | |
| J | 1 15/16 | 49.2 | |
| K | Centerline to Outermost Bearing Face | 1 3/16 | 30.2 |
Values as printed for SP-28. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Base Width (in)
- 2.38
- Overall Height (in)
- 4.56
- Overall Length (in)
- 8.5
- Overall Width (in)
- 2.38
- Housing Construction
- One Piece
- Bolt Size (in)
- 5/8
- Outer Ring Land Profile
- Standard
- Misalignment Type
- Static Only
- Housing Color
- Black
- Bore Size - Inch
- 1.75Shaft size chart
- Foot Height (in)
- 0.75
- Base to Center Height (in)
- 2.38
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.938
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Pillow Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Setscrew Torque (in-lbs)
- 125-165
- Ability to Relubricate
- Yes
- Size Code
- 2-111
- End Cap Available
- No
- Centerline to Outermost Bearing Face (in)
- 1.188
- Static Load Rating (lb)
- 5,139
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Lubricant
- Lithium Complex NLGI 2 Grease
- Housing Material
- Cast Iron
- Fixed vs. Expansion
- Fixed
- Vibration Frequency Roller Spin
- 0.0417
- Radial Clearance
- Standard
- Cage Type
- Land Riding Retainer
- Dynamic Load Rating (lb)
- 7,901
- Housing Coating
- Powder Coated
- Shaft Locking Type
- Set Screw
- Vibration Frequency Outer Ring Defect
- 0.0673
- Vibration Frequency Inner Ring Defect
- 0.0994
- Base Length (in)
- 8.50
- Inner Ring Outside Diameter (in)
- 2.297
- Bearing Insert Material
- 52100 Bearing Steel
- Bolt Spacing Max (in)
- 7.13
- Vibration Frequency Fundamental Train
- 0.0067
- Max Operating Temperature (F)
- 220
- Bearing Type
- Standard Duty
- Grease Fitting Thread Size
- 1/4-28
- Bolt Spacing Min (in)
- 5.88
- Maximum Speed (RPM)
- 3800
- Bearing Insert Finish
- Black Oxide
- 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
- SP-28
- Mfg. Part Numberi
- 700613
- GDS #i
- GDS-115620
- Categoryi
- Pillow Blocks
- UPCi
- 662461004975
- Inserti
- 2-112
SP-28 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| SP-28This part | Base configuration | $342.04 | |
| SP-28T | Skwezloc concentric locking collar | $412.89 | View |
| SP-28TC | Skwezloc concentric locking collar, contact seal | $1,169.46 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700030 | 2-112 | $149.73 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster SP-28, manufacturer article number 700613. Its UPC is 662461004975.
