

Sealmaster NP-204 Mounted Cast Iron Two Bolt Pillow Block Ball Bearing Steel, Black Oxided - Setscrew Lock
- Regular price
- $148.00
- Sale price
- $148.00
- 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 Height (in) | 2.56 in |
Overall Width (in) | 1.5 in |
Base Width (in) | 1.5 in |
Overall Length (in) | 5 in |
Bolt Size (in) | 3/8 in |
Bolt Size (mm) | M10 mm |
Bore Diameter (mm) | 20 mm |
Base to Center Height (in) | 1.3125 in |
Foot Height (in) | 0.5 in |
Length Through Bore (in) | 1.219 in |
Bolt Spacing (in) | 3.75 in |
Bolt Spacing Max (in) | 4.13 in |
Centerline to Outermost Bearing Face (in) | 0.719 in |
Bolt Spacing Min (in) | 3.38 in |
Technical Specifications
Rolling Element | Ball Bearing |
Housing Base | Solid |
Bore Shape | Straight |
Housing Construction | One Piece |
Housing Color | Black |
Outer Ring Land Profile | Standard |
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 |
End Cap Available | No |
Cage Type | Land Riding Retainer |
Insert | 5204 |
Vibration Frequency Fundamental Train | 0.0066 cps |
Fixed vs. Expansion | Fixed |
Vibration Frequency Roller Spin | 0.0381 cps |
Bearing Type | Standard Duty |
Max Operating Temperature (F) | 220 °F |
Static Load Rating (lb) | 1,444 lb |
Grease Fitting Thread Size | 1/4-28 |
Vibration Frequency Inner Ring Defect | 0.0907 cps |
Size Code | 2-012 |
Misalignment Capability | ±2.0° Misalignment - Static Only |
Housing Material | Cast Iron |
Radial Clearance | Standard |
Bearing Insert Finish | Black Oxide |
Base Length (in) | 5 in |
Bearing Insert Material | 52100 Bearing Steel |
Maximum Speed (RPM) | 7300 rpm |
Shaft Locking Type | Set Screw |
Housing Coating | Powder Coated |
Inner Ring Outside Diameter (in) | 1.188 in |
Vibration Frequency Outer Ring Defect | 0.0593 cps |
Lubricant | Lithium Complex NLGI 2 Grease |
Dynamic Load Rating (lb) | 2,611 lb |
General Specifications
UPC | 662461051757 |
Weight | 1.82 LB |
Packaged Length | 1.69 IN |
Packaged Width | 3.19 IN |
Packaged Height | 5.25 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.