Pillow Blocks
Sealmaster NPD-28
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Double Setscrew Lock - NPD-28
NPD-28 is also available as
- NPD-28$261.94
- NPD-28C$860.36
Dynamic Load Rating (lb)
7,901
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
- Zone hardened inner ring with 120° spacing setscrew locking on both sides of ball path 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 1/8 | 54.0 |
| 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 | 11/16 | 17.5 |
| H | Overall Height | 4 1/4 | 108.0 |
| J | Length Through Bore | 2 3/8 | 60.3 |
| K | 1 3/16 | 30.2 | |
| L | 2 19/64 | 58.3 |
Values as printed for NPD-28. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Housing Base
- Solid
- Bore Shape
- Straight
- Overall Width (in)
- 2.38
- Overall Length (in)
- 7.5
- Overall Height (in)
- 4.25
- Base Width (in)
- 2.13
- Housing Construction
- One Piece
- Bolt Size (in)
- 1/2
- Bore Size - Inch
- 1.75Shaft size chart
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Misalignment Type
- Static Only
- Base to Center Height (in)
- 2.13
- Foot Height (in)
- 0.69
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 2.375
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Housing Style
- Pillow Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Ability to Relubricate
- Yes
- Setscrew Torque (in-lbs)
- 125-165
- Grease Fitting Thread Size
- 1/4-28
- Bolt Spacing Max (in)
- 6.06
- Cage Type
- Land Riding Retainer
- Maximum Speed (RPM)
- 5300
- Base Length (in)
- 7.50
- Housing Material
- Cast Iron
- Dynamic Load Rating (lb)
- 7,901
- Vibration Frequency Roller Spin
- 0.0417
- Bearing Insert Material
- 52100 Bearing Steel
- Bearing Type
- Standard Duty
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Size Code
- 2-111
- Lubricant
- Lithium Complex NLGI 2 Grease
- Vibration Frequency Outer Ring Defect
- 0.0673
- Vibration Frequency Inner Ring Defect
- 0.0994
- Centerline to Outermost Bearing Face (in)
- 1.188
- Bearing Insert Finish
- Black Oxide
- End Cap Available
- No
- Inner Ring Outside Diameter (in)
- 2.063
- Shaft Locking Type
- Double Set Screw
- Fixed vs. Expansion
- Fixed
- Vibration Frequency Fundamental Train
- 0.0067
- Bolt Spacing Min (in)
- 5.44
- Static Load Rating (lb)
- 5,139
- Max Operating Temperature (F)
- 220
- Radial Clearance
- Standard
- Housing Coating
- Powder Coated
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 35,144
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- NPD-28
- Mfg. Part Numberi
- 702105
- GDS #i
- GDS-116101
- Categoryi
- Pillow Blocks
- UPCi
- 662461015476
- Inserti
- 2-112D
NPD-28 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NPD-28This part | Base configuration | $261.94 | |
| NPD-28C | Contact seal | $860.36 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 701999 | 2-112D | $664.61 |
Common Questions
What is the minimum order quantity for the NPD-28?
The minimum order quantity for the NPD-28 is 25 units.
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NPD-28, manufacturer article number 702105. Its UPC is 662461015476.
