Pillow Blocks
Sealmaster NP-12T
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Concentric Lock - NP-12T
NP-12 is also available as
Dynamic Load Rating (lb)
2,611
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 5/16 | 33.3 |
| B | Base Length | 5 | 127.0 |
| C | Bolt Spacing Min | 3 3/8 | 85.7 |
| C (max) | Bolt Spacing Max | 4 1/8 | 104.8 |
| D | Base Width | 1 1/2 | 38.1 |
| G | Foot Height | 1/2 | 12.7 |
| H | Overall Height | 2 9/16 | 65.1 |
| J | 1 9/32 | 32.5 | |
| K | 25/32 | 19.8 |
Values as printed for NP-12T. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Housing Base
- Solid
- Bore Shape
- Straight
- Overall Width (in)
- 1.5
- Overall Height (in)
- 2.56
- Overall Length (in)
- 5
- Base Width (in)
- 1.5
- Bolt Size (in)
- 3/8
- Housing Construction
- One Piece
- Bore Size - Inch
- 0.75Shaft size chart
- Outer Ring Land Profile
- Standard
- Misalignment Type
- Static Only
- Housing Color
- Black
- Base to Center Height (in)
- 1.3125
- Foot Height (in)
- 0.5
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.28
- Seal Type (Product Selection)
- Felt Labyrinth Seal
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Housing Style
- Pillow Block
- Locking Collar Outside Diameter (in)
- 1.8
- Inner Race Heat Treat Method
- Zone-Hardened
- Ability to Relubricate
- Yes
- Housing Material
- Cast Iron
- Max Operating Temperature (F)
- 220
- End Cap Available
- No
- Vibration Frequency Outer Ring Defect
- 0.0593
- Vibration Frequency Inner Ring Defect
- 0.0907
- Radial Clearance
- Standard
- Grease Fitting Thread Size
- 1/4-28
- Fixed vs. Expansion
- Fixed
- Vibration Frequency Fundamental Train
- 0.0066
- Bolt Spacing Max (in)
- 4.13
- Vibration Frequency Roller Spin
- 0.0381
- Centerline to Outermost Bearing Face (in)
- 0.78
- Bolt Spacing (in)
- 3.75
- Lubricant
- Lithium Complex NLGI 2 Grease
- Maximum Speed (RPM)
- 10200
- Cage Type
- Land Riding Retainer
- Inner Ring Outside Diameter (in)
- 1.188
- Size Code
- 2-012
- Dynamic Load Rating (lb)
- 2,611
- Bearing Insert Material
- 52100 Bearing Steel
- Static Load Rating (lb)
- 1,444
- Shaft Locking Type
- Concentric
- Bearing Insert Finish
- Black Oxide
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Bolt Spacing Min (in)
- 3.38
- Base Length (in)
- 5
- Bearing Type
- Standard Duty
- Housing Coating
- Powder Coated
- 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-12T
- Mfg. Part Numberi
- 705372
- GDS #i
- GDS-116865
- Categoryi
- Pillow Blocks
- UPCi
- 662461029626
- Inserti
- 2-012T
NP-12 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NP-12 | Base configuration | $89.76 | View |
| NP-12C | Contact seal | $103.04 | View |
| NP-12TThis part | Skwezloc concentric locking collar | $113.44 | |
| NP-12TC | Skwezloc concentric locking collar, contact seal | $138.32 | View |
| NP-12 CXU | Air-handling housing fit, noise tested | Request quote | View |
| NP-12 HT | High temperature | $178.43 | View |
| NP-12 LO | Low drag | Request quote | View |
| NP-12T CXU | Skwezloc concentric locking collar, Air-handling housing fit, noise tested | $238.43 | View |
| NP-12TX ALP | — | $171.59 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 705309 | 2-012T | $85.27 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NP-12T, manufacturer article number 705372. Its UPC is 662461029626.
