

Sealmaster NP-30 Mounted Cast Iron Two Bolt Pillow Block Ball Bearing Steel, Black Oxided - Setscrew Lock
- Regular price
- $515.00
- Sale price
- $515.00
- Regular price
-
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Key Features
- 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 and dimple for direct lubrication and anti-rotation
Description
The Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing is a robust, ready-to-mount bearing unit designed for reliable performance in normal to medium-duty applications. Featuring a solid one-piece cast iron housing, this pillow block ensures maximum strength and rigidity. The bearing insert, crafted from 52100 bearing steel with a black oxide coating, provides excellent corrosion resistance and durability. It utilizes a setscrew locking collar or Sealmaster’s exclusive Skwezloc® concentric locking collar for secure shaft attachment, minimizing slippage. The unit includes felt seals to protect against contaminants and retain lubrication, with a relubricatable design for extended bearing life. The two-bolt base allows for straightforward installation, supporting radial or radial-and-thrust loads. With a wide range of bore sizes and configurations, this bearing is ideal for applications such as conveyors, industrial machinery, and material handling systems. Sealmaster’s innovative features, like the lock pin and dimple system, enable direct lubrication and prevent outer ring rotation, ensuring optimal performance and reduced maintenance.
Specifications
Dimensions
Overall Width (in) | 2.38 in |
Overall Height (in) | 4.56 in |
Base Width (in) | 2.38 in |
Overall Length (in) | 8.13 in |
Bolt Size (in) | 5/8 in |
Bore Diameter (in) | 1.875 in |
Foot Height (in) | 0.75 in |
Base to Center Height (in) | 2.2500 in |
Length Through Bore (in) | 2.031 in |
Centerline to Outermost Bearing Face (in) | 1.281 in |
Bolt Spacing Max (in) | 6.5 in |
Bolt Spacing Min (in) | 6 in |
Technical Specifications
Rolling Element | Ball Bearing |
Housing Base | Solid |
Bore Shape | Straight |
Housing Construction | One Piece |
Outer Ring Land Profile | Standard |
Housing Color | Black |
Misalignment Type | Static Only |
Cage Material | PPS - Polyphenylene Sulfide |
Seal Type | Felt Labyrinth Seal |
Housing Type | Pillow Block, Two Bolt |
Housing Style | Pillow Block |
Ability to Relubricate | Yes |
Inner Race Heat Treat Method | Zone-Hardened |
Base Length (in) | 8.13 in |
Vibration Frequency Roller Spin | 0.0445 cps |
Maximum Speed (RPM) | 3550 rpm |
Lubricant | Lithium Complex NLGI 2 Grease |
Size Code | 2-115 |
Bearing Insert Material | 52100 Bearing Steel |
Bearing Insert Finish | Black Oxide |
Insert | 2-114 |
Housing Material | Cast Iron |
Inner Ring Outside Diameter (in) | 2.469 in |
Misalignment Capability | ±2.0° Misalignment - Static Only |
End Cap Available | No |
Static Load Rating (lb) | 5,216 lb |
Fixed vs. Expansion | Fixed |
Vibration Frequency Fundamental Train | 0.0068 cps |
Shaft Locking Type | Set Screw |
Vibration Frequency Inner Ring Defect | 0.0984 cps |
Max Operating Temperature (F) | 220 °F |
Dynamic Load Rating (lb) | 7,889 lb |
Radial Clearance | Standard |
Vibration Frequency Outer Ring Defect | 0.0683 cps |
Grease Fitting Thread Size | 1/8 NPT |
Bearing Type | Standard Duty |
Cage Type | Land Riding Retainer |
Housing Coating | Powder Coated |
General Specifications
UPC | 662461001714 |
Weight | 8.32 LB |
Packaged Length | 9.00 IN |
Packaged Width | 5.19 IN |
Packaged Height | 2.38 IN |
HTC | 8483.20.8040 |
Country of Origin | Mexico |
Manuals
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Disclaimer: Apollo Industries is not an authorized distributor, reseller, or representative of Regal Rexnord Corporation. All Regal Rexnord Corporation trademarks and product names are the property of their respective owners. We sell genuine Regal Rexnord Corporation products purchased through independent channels.