Pillow Blocks
Sealmaster NP-47
Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - NP-47
NP-47 is also available as
- NP-47$429.29
- NP-47C$549.96
Dynamic Load Rating (lb)
14,839
Housing Base
Solid
Overall Width (in)
3.50
Base Width (in)
3.50
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
- 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 | 3.5 | 88.9 |
| B | Overall Length | 13 | 330.2 |
| C | Bolt Spacing Min | 8 1/2 | 215.9 |
| C (max) | Bolt Spacing Max | 9 1/2 | 241.3 |
| D | Base Width | 3 1/2 | 88.9 |
| G | Foot Height | 1 1/8 | 28.6 |
| H | Overall Height | 7 | 177.8 |
| J | Length Through Bore | 3 1/16 | 77.8 |
| K | Centerline to Outermost Bearing Face | 1 3/4 | 44.5 |
| L | Inner Ring Outside Diameter | 3 41/64 | 92.5 |
Values as printed for NP-47. Verify critical dimensions before ordering.
- Housing Base
- Solid
- Overall Width (in)
- 3.50
- Base Width (in)
- 3.50
- Overall Length (in)
- 13
- Rolling Element
- Ball Bearing
- Overall Height (in)
- 7.00
- Housing Construction
- One Piece
- Bore Shape
- Straight
- Bolt Size (in)
- 7/8
- Outer Ring Land Profile
- Standard
- Housing Color
- Black
- Misalignment Type
- Static Only
- Bore Size - Inch
- 2.9375Shaft size chart
- Base to Center Height (in)
- 3.5000
- Foot Height (in)
- 1.13
- Cage Material
- Brass
- Length Through Bore (in)
- 3.063
- 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
- Setscrew Torque (in-lbs)
- 350-450
- Ability to Relubricate
- Yes
- Size Code
- 2-215
- Maximum Speed (RPM)
- 2450
- Bolt Spacing Min (in)
- 8.5
- Vibration Frequency Inner Ring Defect
- 0.1072
- End Cap Available
- No
- Cage Type
- Land Riding Retainer
- Bearing Type
- Standard Duty
- Base Length (in)
- 13.00
- Fixed vs. Expansion
- Fixed
- Max Operating Temperature (F)
- 220
- Inner Ring Outside Diameter (in)
- 3.641
- Vibration Frequency Outer Ring Defect
- 0.0761
- Static Load Rating (lb)
- 11,224
- Shaft Locking Type
- Set Screw
- Radial Clearance
- Standard
- Bolt Spacing Max (in)
- 9.5
- Housing Coating
- Powder Coated
- Bearing Insert Finish
- Black Oxide
- Dynamic Load Rating (lb)
- 14,839
- Housing Material
- Cast Iron
- Grease Fitting Thread Size
- 1/8 NPT
- Vibration Frequency Roller Spin
- 0.0476
- Bearing Insert Material
- 52100 Bearing Steel
- Centerline to Outermost Bearing Face (in)
- 1.750
- Misalignment Capability
- ±2.0° Misalignment - Static Only
- Lubricant
- Lithium Complex NLGI 2 Grease
- Vibration Frequency Fundamental Train
- 0.0069
- Duty/Series
- Standard
- Optional Seal
- Contact
- Operating Temperature Range (F)
- -20° to 220°F
- Dynamic Load Rating (N)
- 66,004
Always verify dimensions, load ratings, material, and seal type before ordering.
- Brandi
- Sealmaster
- Mfg. Catalog Numberi
- NP-47
- Mfg. Part Numberi
- 707768
- GDS #i
- GDS-117325
- Categoryi
- Pillow Blocks
- UPCi
- 662461296417
- Inserti
- 2-215
NP-47 options
| Part # | Configuration | Price | View |
|---|---|---|---|
| NP-47This part | Base configuration | $429.29 | |
| NP-47C | Contact seal | $549.96 | View |
Bearing insert used in this unit
| Part # | Name | Each |
|---|---|---|
| 700052 | 2-215 | $419.41 |
Common Questions
Is this a genuine Sealmaster part?
Yes. GDS Supply supplies the genuine Sealmaster NP-47, manufacturer article number 707768. Its UPC is 662461296417.
