

Sealmaster MP-55 Mounted Cast Iron Two Bolt Pillow Block Ball Bearing teel, Black Oxided - Setscrew Lock
- Regular price
- $1,892.00
- Sale price
- $1,892.00
- 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
Base Width (in) | 4.38 in |
Overall Width (in) | 4.38 in |
Overall Height (in) | 8.25 in |
Overall Length (in) | 15 in |
Bolt Size (in) | 7/8 in |
Bore Diameter (in) | 3.4375 in |
Base to Center Height (in) | 4.0000 in |
Foot Height (in) | 1.31 in |
Length Through Bore (in) | 3.781 in |
Bolt Spacing Min (in) | 9.63 in |
Centerline to Outermost Bearing Face (in) | 2.219 in |
Bolt Spacing Max (in) | 12.63 in |
Technical Specifications
Housing Base | Solid |
Rolling Element | Ball Bearing |
Bore Shape | Straight |
Housing Construction | One Piece |
Outer Ring Land Profile | Standard |
Misalignment Type | Static Only |
Housing Color | Black |
Cage Material | Brass |
Housing Type | Pillow Block, Two Bolt |
Seal Type | Felt Labyrinth Seal |
Housing Style | Pillow Block |
Inner Race Heat Treat Method | Zone-Hardened |
Ability to Relubricate | Yes |
Setscrew Torque (in-lbs) | 500-650 in/lbs |
Base Length (in) | 15.00 in |
Size Code | 2-38 |
Bearing Type | Medium Duty |
Static Load Rating (lb) | 16,301 lb |
Bearing Insert Material | 52100 Bearing Steel |
Cage Type | Land Riding Retainer |
Shaft Locking Type | Set Screw |
Lubricant | Lithium Complex NLGI 2 Grease |
Housing Coating | Powder Coated |
Dynamic Load Rating (lb) | 21,566 lb |
Grease Fitting Thread Size | 1/4 NPT |
Bearing Insert Finish | Black Oxide |
End Cap Available | No |
Vibration Frequency Roller Spin | 0.0454 cps |
Fixed vs. Expansion | Fixed |
Radial Clearance | Standard |
Insert | 3-37 |
Vibration Frequency Inner Ring Defect | 0.0981 cps |
Inner Ring Outside Diameter (in) | 4.391 in |
Maximum Speed (RPM) | 2000 rpm |
Vibration Frequency Outer Ring Defect | 0.0685 cps |
Misalignment Capability | ±2.0° Misalignment - Static Only |
Housing Material | Cast Iron |
Vibration Frequency Fundamental Train | 0.0069 cps |
Max Operating Temperature (F) | 220 °F |
General Specifications
UPC | 662461013977 |
Weight | 48.96 LB |
Packaged Length | 17.25 IN |
Packaged Width | 9.88 IN |
Packaged Height | 4.88 IN |
HTC | 8483.20.8040 |
Country of Origin | United States of America |
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.