Pillow Blocks
Sealmaster NP-27C
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NP-27C
NP-27 is also available as
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 with diamond faceted setscrews
- Single lip contact seal
- 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 | Overall 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 | 1 15/16 | 49.2 |
| K | Centerline to Outermost Bearing Face | 1 3/16 | 30.2 |
| L | Inner Ring Outside Diameter | 2 19/64 | 58.3 |
Values as printed for NP-27, the base part of NP-27C; the options in this part number do not change the housing. Verify critical dimensions before ordering.
- Rolling Element
- Ball Bearing
- Housing Base
- Solid
- Bore Shape
- Straight
- Overall Length (in)
- 7.5
- Overall Width (in)
- 2.13
- Base Width (in)
- 2.13
- Overall Height (in)
- 4.25
- Bolt Size (in)
- 1/2
- Housing Construction
- One Piece
- Misalignment Type
- Static Only
- Outer Ring Land Profile
- Standard
- Bore Size - Inch
- 1.6875Shaft size chart
- Housing Color
- Black
- Base to Center Height (in)
- 2.13
- Foot Height (in)
- 0.69
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.938
- Seal Type (Product Selection)
- Single Lip Contact Seal
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Housing Style
- Pillow Block
- Ability to Relubricate
- Yes
- Inner Race Heat Treat Method
- Zone-Hardened
- Setscrew Torque (in-lbs)
- 125-165
- Inner Ring Outside Diameter (in)
- 2.063
- Bearing Type
- Standard Duty
- Bearing Insert Finish
- Black Oxide
- Housing Material
- Cast Iron
- Vibration Frequency Roller Spin
- 0.0417
- Vibration Frequency Inner Ring Defect
- 0.0994
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Vibration Frequency Outer Ring Defect
- 0.0673
- Maximum Speed (RPM)
- 3800
- Vibration Frequency Fundamental Train
- 0.0067
- End Cap Available
- No
- Bearing Insert Material
- 52100 Bearing Steel
- Cage Type
- Land Riding Retainer
- Shaft Locking Type
- Set Screw
- Radial Clearance
- Standard
- Base Length (in)
- 7.50
- Size Code
- 2-111
- Dynamic Load Rating (lb)
- 7,901
- Housing Coating
- Powder Coated
- Static Load Rating (lb)
- 5,139
- Bolt Spacing Min (in)
- 5.44
- Max Operating Temperature (F)
- 220
- Bolt Spacing Max (in)
- 6.06
- Centerline to Outermost Bearing Face (in)
- 1.188
- Fixed vs. Expansion
- Fixed
- Grease Fitting Thread Size
- 1/4-28
- Lubricant
- Lithium Complex NLGI 2 Grease
- 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-27C
- Mfg. Part Numberi
- 703259
- GDS #i
- GDS-116291
- Categoryi
- Pillow Blocks
- UPCi
- 662461020784
- Inserti
- 2-111C
NP-27 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NP-27 | Base configuration | $172.80 | View |
| NP-27CThis part | Contact seal | $172.80 | |
| NP-27T | Skwezloc concentric locking collar | $218.50 | View |
| NP-27TC | Skwezloc concentric locking collar, contact seal | $270.07 | View |
| NP-27 CXU | Air-handling housing fit, noise tested | $278.16 | View |
| NP-27 HT | High temperature | Request quote | View |
| NP-27 XLO | Extra low drag | $1,216.98 | View |
| NP-27T CXU | Skwezloc concentric locking collar, Air-handling housing fit, noise tested | $257.20 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700029 | 2-111 | $161.00 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NP-27C, manufacturer article number 703259. Its UPC is 662461020784.
