Pillow Blocks
Sealmaster NPL-28
Sealmaster Mounted Cast Iron Two Bolt Low Base Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NPL-28
NPL-28 is also available as
- NPL-28$180.98
- NPL-28TC$257.20
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 1/16 | 52.4 |
| B | Base Length | 7 1/2 | 190.5 |
| C | Bolt Spacing Min | 5 7/16 | 138.1 |
| C (max) | Bolt Spacing Max | 6 1/16 | 154.0 |
| D | Base Width | 2 1/8 | 54.0 |
| G | Foot Height | 5/8 | 15.9 |
| H | Overall Height | 4 3/16 | 106.4 |
| J | Length Through Bore | 1 15/16 | 49.2 |
| K | Centerline to Outermost Bearing Face | 1 3/16 | 30.2 |
Values as printed for NPL-28. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Overall Width (in)
- 2.13
- Base Width (in)
- 2.13
- Overall Length (in)
- 7.5
- Overall Height (in)
- 4.19
- Bolt Size (in)
- 1/2
- Housing Construction
- One Piece
- Housing Color
- Black
- Misalignment Type
- Static Only
- Bore Size - Inch
- 1.75Shaft size chart
- Outer Ring Land Profile
- Standard
- Base to Center Height (in)
- 2.06
- Foot Height (in)
- 0.63
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.938
- Housing Type (Product Selection)
- Pillow Block, Two Bolt, Low Base
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Style
- Pillow Block
- Ability to Relubricate
- Yes
- Setscrew Torque (in-lbs)
- 125-165
- Inner Race Heat Treat Method
- Zone-Hardened
- Housing Coating
- Powder Coated
- Vibration Frequency Roller Spin
- 0.0417
- Static Load Rating (lb)
- 5,139
- End Cap Available
- No
- Bearing Insert Finish
- Black Oxide
- Grease Fitting Thread Size
- 1/4-28
- Cage Type
- Land Riding Retainer
- Inner Ring Outside Diameter (in)
- 2.063
- Lubricant
- Lithium Complex NLGI 2 Grease
- Bolt Spacing Max (in)
- 6.06
- Maximum Speed (RPM)
- 3800
- Housing Material
- Cast Iron
- Centerline to Outermost Bearing Face (in)
- 1.188
- Radial Clearance
- Standard
- Max Operating Temperature (F)
- 220
- Fixed vs. Expansion
- Fixed
- Vibration Frequency Inner Ring Defect
- 0.0994
- Bolt Spacing Min (in)
- 5.44
- Vibration Frequency Outer Ring Defect
- 0.0673
- Bearing Type
- Standard Duty
- Shaft Locking Type
- Set Screw
- Bearing Insert Material
- 52100 Bearing Steel
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Dynamic Load Rating (lb)
- 7,901
- Base Length (in)
- 7.50
- Vibration Frequency Fundamental Train
- 0.0067
- Size Code
- 2-111
- 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
- NPL-28
- Mfg. Part Numberi
- 700585
- GDS #i
- GDS-115601
- Categoryi
- Pillow Blocks
- UPCi
- 662461004708
- Inserti
- 2-112
NPL-28 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NPL-28This part | Base configuration | $180.98 | |
| NPL-28TC | Skwezloc concentric locking collar, contact seal | $257.20 | 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 NPL-28, manufacturer article number 700585. Its UPC is 662461004708.
