Pillow Blocks
Sealmaster NPL-23
Sealmaster Mounted Cast Iron Two Bolt Low Base Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NPL-23
NPL-23 is also available as
Dynamic Load Rating (lb)
5,782
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 | 1 13/16 | 46.0 |
| B | Base Length | 6 9/16 | 166.7 |
| C | Bolt Spacing Min | 4 11/16 | 119.1 |
| C (max) | Bolt Spacing Max | 5 5/16 | 134.9 |
| D | Base Width | 1 7/8 | 47.6 |
| G | Foot Height | 9/16 | 14.3 |
| H | Overall Height | 3 11/16 | 93.7 |
| J | Length Through Bore | 1 11/16 | 42.9 |
| K | Centerline to Outermost Bearing Face | 1 | 25.4 |
Values as printed for NPL-23. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Overall Width (in)
- 1.88
- Base Width (in)
- 1.88
- Overall Length (in)
- 6.56
- Overall Height (in)
- 3.69
- Bolt Size (in)
- 1/2
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Housing Color
- Black
- Outer Ring Land Profile
- Standard
- Bore Size - Inch
- 1.4375Shaft size chart
- Base to Center Height (in)
- 1.8125
- Foot Height (in)
- 0.56
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.685
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Type (Product Selection)
- Pillow Block, Two Bolt, Low Base
- Housing Style
- Pillow Block
- Ability to Relubricate
- Yes
- Inner Race Heat Treat Method
- Zone-Hardened
- Vibration Frequency Fundamental Train
- 0.0066
- Size Code
- 2-17
- Max Operating Temperature (F)
- 220
- Bearing Insert Material
- 52100 Bearing Steel
- Fixed vs. Expansion
- Fixed
- Bolt Spacing Max (in)
- 5.31
- Dynamic Load Rating (lb)
- 5,782
- Housing Material
- Cast Iron
- Vibration Frequency Inner Ring Defect
- 0.0905
- Vibration Frequency Outer Ring Defect
- 0.0595
- Housing Coating
- Powder Coated
- Vibration Frequency Roller Spin
- 0.0386
- End Cap Available
- No
- Bolt Spacing (in)
- 5
- Cage Type
- Land Riding Retainer
- Shaft Locking Type
- Set Screw
- Centerline to Outermost Bearing Face (in)
- 1
- Bearing Type
- Standard Duty
- Radial Clearance
- Standard
- Maximum Speed (RPM)
- 4650
- Bearing Insert Finish
- Black Oxide
- Inner Ring Outside Diameter (in)
- 1.851
- Grease Fitting Thread Size
- 1/4-28
- Bolt Spacing Min (in)
- 4.69
- Lubricant
- Lithium Complex NLGI 2 Grease
- Static Load Rating (lb)
- 3,493
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Base Length (in)
- 6.56
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 25,718
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- NPL-23
- Mfg. Part Numberi
- 700580
- GDS #i
- GDS-115597
- Categoryi
- Pillow Blocks
- UPCi
- 662461004654
- Inserti
- 2-17
NPL-23 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NPL-23This part | Base configuration | $193.37 | |
| NPL-23C | Contact seal | $393.35 | View |
| NPL-23T | Skwezloc concentric locking collar | $210.92 | View |
| NPL-23TC | Skwezloc concentric locking collar, contact seal | $216.12 | View |
| NPL-23 HT | High temperature | $895.97 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700024 | 2-17 | $191.01 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NPL-23, manufacturer article number 700580. Its UPC is 662461004654.
