Pillow Blocks
Sealmaster NP-18C
GEN GOLD SET SCREW
NP-18 is also available as
- NP-18$117.17
- NP-18C$194.11
- NP-18T$159.20
- NP-18 HTQuote
Dynamic Load Rating (lb)
4,381
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
- 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 and dimple for direct lubrication and anti-rotation
Dimensions
| Dim. | Meaning | in | mm |
|---|---|---|---|
| A | Base to Center Height | 1 11/16 | 42.9 |
| B | Overall Length | 6 1/2 | 165.1 |
| C | Bolt Spacing Min | 4 7/16 | 112.7 |
| C (max) | Bolt Spacing Max | 5 1/16 | 128.6 |
| D | Base Width | 1 7/8 | 47.6 |
| G | Foot Height | 9/16 | 14.3 |
| H | Overall Height | 3 3/8 | 85.7 |
| J | Length Through Bore | 1 1/2 | 38.1 |
| K | Centerline to Outermost Bearing Face | 7/8 | 22.2 |
| L | Inner Ring Outside Diameter | 1 19/32 | 40.5 |
Values as printed for NP-18, the base part of NP-18C; the options in this part number do not change the housing. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Rolling Element
- Ball Bearing
- Bore Shape
- Straight
- Overall Length (in)
- 6.5
- Base Width (in)
- 1.88
- Overall Width (in)
- 1.88
- Overall Height (in)
- 3.38
- Bolt Size (in)
- 1/2
- Housing Construction
- One Piece
- Outer Ring Land Profile
- Standard
- Bore Size - Inch
- 1.125Shaft size chart
- Misalignment Type
- Static Only
- Housing Color
- Black
- Base to Center Height (in)
- 1.6875
- Foot Height (in)
- 0.56
- Cage Material
- PPS - Polyphenylene Sulfide
- Length Through Bore (in)
- 1.497
- Housing Type (Product Selection)
- Pillow Block, Two Bolt
- Seal Type (Product Selection)
- Single Lip Contact Seal
- Housing Style
- Pillow Block
- Inner Race Heat Treat Method
- Zone-Hardened
- Ability to Relubricate
- Yes
- Grease Fitting Thread Size
- 1/4-28
- Fixed vs. Expansion
- Fixed
- Cage Type
- Land Riding Retainer
- End Cap Available
- No
- Centerline to Outermost Bearing Face (in)
- 0.875
- Inner Ring Outside Diameter (in)
- 1.594
- Vibration Frequency Roller Spin
- 0.0385
- Base Length (in)
- 6.5
- Bearing Insert Finish
- Black Oxide
- Maximum Speed (RPM)
- 5450
- Size Code
- 2-13
- Radial Clearance
- Standard
- Max Operating Temperature (F)
- 220
- Vibration Frequency Outer Ring Defect
- 0.0595
- Housing Material
- Cast Iron
- Lubricant
- Lithium Complex NLGI 2 Grease
- Bolt Spacing Min (in)
- 4.44
- Dynamic Load Rating (lb)
- 4,381
- Static Load Rating (lb)
- 2,567
- Vibration Frequency Inner Ring Defect
- 0.0905
- Vibration Frequency Fundamental Train
- 0.0066
- Bolt Spacing Max (in)
- 5.06
- Bearing Insert Material
- 52100 Bearing Steel
- Bolt Spacing (in)
- 4.75
- Shaft Locking Type
- Set Screw
- Housing Coating
- Powder Coated
- Bearing Type
- Standard Duty
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 19,487
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- NP-18C
- Mfg. Part Numberi
- 703249
- GDS #i
- GDS-116282
- Categoryi
- Pillow Blocks
- UPCi
- 662461020685
- Inserti
- 2-12C
NP-18 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NP-18 | Base configuration | $117.17 | View |
| NP-18CThis part | Contact seal | $194.11 | |
| NP-18T | Skwezloc concentric locking collar | $159.20 | View |
| NP-18 HT | High temperature | Request quote | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700018 | 2-12 | $154.91 |
Common Questions
What is the minimum order quantity for the NP-18C?
The minimum order quantity for the NP-18C is 10 units.
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NP-18C, manufacturer article number 703249. Its UPC is 662461020685.
Related Products
Replaces Legacy Parts
This product is a direct replacement for the following discontinued part numbers.
- 705754Sealmaster NP-18TCDiscontinued