Sealmaster Mounted Cast Iron Two Bolt Pillow Block Ball Bearing - 52100 Bearing Steel, Black Oxided - Setscrew Lock - Air Handling Housing Fit, Noise Tested - SP-31 CXU
Part #:721673
Catalog #:SP-31 CXU
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
- Air Handling noise check for quiet operation
- Looser than standard housing fit for ease of alignment on lightweight frames
- Felt labyrinth seal and flinger for dusty and dirty environment
- 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
How can we improve our Product Information?
Talk to one of our expert sales professionals about how this brand can efficiently power your business.
Product Specifications
Dimensions
| Overall Width (in): | 2.50 in | Base Width (in): | 2.50 in |
| Overall Length (in): | 10.5 in | Overall Height (in): | 5.31 in |
| Bolt Size (in): | 5/8 in | Bore Diameter (in): | 1.9375 in |
| Foot Height (in): | 0.88 in | Base to Center Height (in): | 2.7500 in |
| Length Through Bore (in): | 2.031 in | Centerline to Outermost Bearing Face (in): | 1.281 in |
| Bolt Spacing Min (in): | 6.75 in | Bolt Spacing Max (in): | 8.5 in |
Technical Specifications
| Rolling Element: | Ball Bearing | Housing Base: | Solid |
| Bore Shape: | Straight | Housing Construction: | One Piece |
| Options: | Air Handling Housing Fit, Noise Tested | Misalignment Type: | Static Only |
| Housing Color: | Black | Outer Ring Land Profile: | Standard |
| Cage Material: | PPS - Polyphenylene Sulfide | Seal Type: | Felt Labyrinth Seal |
| Housing Type: | Pillow Block, Two Bolt | Housing Style: | Pillow Block |
| Inner Race Heat Treat Method: | Zone-Hardened | Ability to Relubricate: | Yes |
| Base Length (in): | 10.50 in | Inner Ring Outside Diameter (in): | 2.469 in |
| Bearing Insert Material: | 52100 Bearing Steel | Vibration Frequency Fundamental Train: | 0.0068 cps |
| Fixed vs. Expansion: | Fixed | Grease Fitting Thread Size: | 1/8 NPT |
| Static Load Rating (lb): | 5,216 lb | Shaft Locking Type: | Set Screw |
| Maximum Speed (RPM): | 3550 rpm | End Cap Available: | No |
| Housing Material: | Cast Iron | Vibration Frequency Inner Ring Defect: | 0.0984 cps |
| Dynamic Load Rating (lb): | 7,889 lb | Cage Type: | Land Riding Retainer |
| Bearing Insert Finish: | Black Oxide | Size Code: | 2-115 |
| Misalignment Capability: | ±2.0° Misalignment - Static Only | Vibration Frequency Outer Ring Defect: | 0.0683 cps |
| Max Operating Temperature (F): | 220 °F | Housing Coating: | Powder Coated |
| Radial Clearance: | Standard | Lubricant: | Lithium Complex NLGI 2 Grease |
| Insert: | 2-115 CXU | Bearing Type: | Standard Duty |
| Vibration Frequency Roller Spin: | 0.0445 cps |
General Specifications
| UPC: | 662461193884 | Weight: | 11.60 LB |
| Packaged Length: | 10.38 IN | Packaged Width: | 6.50 IN |
| Packaged Height: | 3.00 IN | HTC: | 8483.20.8040 |
| Country of Origin: | United States of America |