Pillow Blocks
Sealmaster SP-31T
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - SP-31T
SP-31 is also available as
Dynamic Load Rating (lb)
7,889
Rolling Element
Ball Bearing
Housing Base
Solid
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
- 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 , dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | Base to Center Height | 2 3/4 | 69.9 |
| B | 10 1/2 | 266.7 | |
| C | Bolt Spacing Min | 6 3/4 | 171.5 |
| C (max) | Bolt Spacing Max | 8 1/2 | 215.9 |
| D | Base Width | 2 1/2 | 63.5 |
| G | Foot Height | 7/8 | 22.2 |
| H | 5 5/16 | 134.9 | |
| J | 2 3/32 | 53.2 | |
| K | 1 11/32 | 34.1 | |
| L | 3 3/8 | 85.7 |
Values as printed for SP-31T. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Housing Base
- Solid
- Bore Shape
- Straight
- Overall Height (in)
- 5.31
- Base Width (in)
- 2.50
- Overall Width (in)
- 2.50
- Overall Length (in)
- 10.5
- Bolt Size (in)
- 5/8
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Bore Size - Inch
- 1.9375Shaft size chart
- Base to Center Height (in)
- 2.7500
- Foot Height (in)
- 0.88
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 2.09
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Pillow Block
- Ability to Relubricate
- Yes
- Inner Race Heat Treat Method
- Zone-Hardened
- Fixed vs. Expansion
- Fixed
- Bearing Insert Finish
- Black Oxide
- Housing Coating
- Powder Coated
- Base Length (in)
- 10.50
- Bearing Type
- Standard Duty
- Vibration Frequency Roller Spin
- 0.0445
- Housing Material
- Cast Iron
- Lubricant
- Lithium Complex NLGI 2 Grease
- Grease Fitting Thread Size
- 1/8 NPT
- Bolt Spacing Max (in)
- 8.5
- Maximum Speed (RPM)
- 5000
- Size Code
- 2-115
- Static Load Rating (lb)
- 5,216
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Vibration Frequency Inner Ring Defect
- 0.0984
- Vibration Frequency Fundamental Train
- 0.0068
- Dynamic Load Rating (lb)
- 7,889
- Bolt Spacing Min (in)
- 6.75
- Radial Clearance
- Standard
- Inner Ring Outside Diameter (in)
- 2.469
- Bearing Insert Material
- 52100 Bearing Steel
- Cage Type
- Land Riding Retainer
- Max Operating Temperature (F)
- 220
- Centerline to Outermost Bearing Face (in)
- 1.34
- Vibration Frequency Outer Ring Defect
- 0.0683
- End Cap Available
- No
- Shaft Locking Type
- Concentric
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 35,090
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- SP-31T
- Mfg. Part Numberi
- 705523
- GDS #i
- GDS-116962
- Categoryi
- Pillow Blocks
- UPCi
- 662461030783
- Inserti
- 2-115T
SP-31 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| SP-31 | Base configuration | $369.38 | View |
| SP-31C | Contact seal | $494.49 | View |
| SP-31TThis part | Skwezloc concentric locking collar | $405.84 | |
| SP-31 HT | High temperature | $1,573.63 | View |
| SP-31T CXU | Skwezloc concentric locking collar, Air-handling housing fit, noise tested | Request quote | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 705321 | 2-115T | $186.18 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster SP-31T, manufacturer article number 705523. Its UPC is 662461030783.
