Pillow Blocks
Sealmaster NP-20T
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - NP-20T
NP-20 is also available as
Dynamic Load Rating (lb)
5,782
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 | 1 7/8 | 47.6 |
| 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 | 5/8 | 15.9 |
| H | Overall Height | 3 3/4 | 95.3 |
| J | 1 3/4 | 44.5 | |
| K | 1 1/16 | 27.0 |
Values as printed for NP-20T. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Housing Base
- Solid
- Bore Shape
- Straight
- Overall Width (in)
- 1.88
- Overall Height (in)
- 3.75
- Overall Length (in)
- 6.56
- Base Width (in)
- 1.88
- Bolt Size (in)
- 1/2
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Bore Size - Inch
- 1.25Shaft size chart
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Base to Center Height (in)
- 1.875
- Foot Height (in)
- 0.63
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.81
- 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
- Ability to Relubricate
- Yes
- Locking Collar Outside Diameter (in)
- 2.5
- Centerline to Outermost Bearing Face (in)
- 1.12
- Radial Clearance
- Standard
- Housing Material
- Cast Iron
- Vibration Frequency Inner Ring Defect
- 0.0905
- Max Operating Temperature (F)
- 220
- Base Length (in)
- 6.56
- Maximum Speed (RPM)
- 6500
- Fixed vs. Expansion
- Fixed
- Vibration Frequency Outer Ring Defect
- 0.0595
- Grease Fitting Thread Size
- 1/4-28
- Bolt Spacing Min (in)
- 4.69
- Bolt Spacing Max (in)
- 5.31
- End Cap Available
- No
- Bearing Insert Material
- 52100 Bearing Steel
- Shaft Locking Type
- Concentric
- Housing Coating
- Powder Coated
- Vibration Frequency Fundamental Train
- 0.0066
- Vibration Frequency Roller Spin
- 0.0386
- Bolt Spacing (in)
- 5
- Dynamic Load Rating (lb)
- 5,782
- Size Code
- 2-17
- Lubricant
- Lithium Complex NLGI 2 Grease
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Inner Ring Outside Diameter (in)
- 1.851
- Cage Type
- Land Riding Retainer
- Bearing Type
- Standard Duty
- Static Load Rating (lb)
- 3,493
- 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
- NP-20T
- Mfg. Part Numberi
- 705377
- GDS #i
- GDS-116869
- Categoryi
- Pillow Blocks
- UPCi
- 662461029671
- Inserti
- 2-14T
NP-20 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NP-20 | Base configuration | $136.85 | View |
| NP-20C | Contact seal | $136.85 | View |
| NP-20R | Reduced housing envelope | $170.24 | View |
| NP-20RC | Reduced housing envelope, contact seal | $196.99 | View |
| NP-20RT | Reduced housing envelope, Skwezloc concentric locking collar | $173.69 | View |
| NP-20TThis part | Skwezloc concentric locking collar | $172.96 | |
| NP-20TC | Skwezloc concentric locking collar, contact seal | $172.96 | View |
| NP-20 DRT | High-contamination seal | Request quote | View |
| NP-20 HI | High-performance high temperature | $327.31 | View |
| NP-20 HT | High temperature | $274.78 | View |
| NP-20R HI | Reduced housing envelope, High-performance high temperature | $310.87 | View |
| NP-20R XLO | Reduced housing envelope, Extra low drag | $1,022.62 | View |
| NP-20T HS | Skwezloc concentric locking collar, High speed | $648.84 | View |
| NP-20T RM | Skwezloc concentric locking collar, Reduced maintenance | $241.64 | View |
| NP-20U RM | Spring seal, spring-in (UltraGard), Reduced maintenance | $902.46 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 705314 | 2-14T | $142.10 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NP-20T, manufacturer article number 705377. Its UPC is 662461029671.
