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    • Severe Duty Motors
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    • Definite Purpose Motors
    • General Purpose Motors
    • Washdown Motors
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  • Gear Spindles
  • Grease
  • Grid Couplings
  • Locking Assemblies & Shrink Discs
  • Rigid Couplings
  • Shaft Guards
  • Torque Limiters/Torque Overload Devices
  • Torsionally Soft Couplings
Electric Motors
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  • DC Motors
  • Gearmotors
  • HVAC/R Motors
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Electronic Components
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  • Centrifugal Blowers
  • Draft Inducer Blowers
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  • Axial Fans
  • Crossflow Blowers
Gearboxes
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  • Inline Gearboxes
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Linear Motion
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Precision Motion & Automation
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Switchgear, Transfer Switches & Controls
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Browning
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Cambridge
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CENTA
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Century
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Falk
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FASCO
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Genteq
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Kollmorgen
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LEESON
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Nicotra Gebhardt
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Portescap
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Rex
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Rexnord Aerospace
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Sealmaster
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Stromag
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Svendborg Brakes
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Thomson Linear
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Thomson Power Systems
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Warner Electric
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<b>View All Brands ></b>
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Intelligent Solutions
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  • Reliability Services and Condition Monitoring
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  • Custom Conveyor Design
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  • Installation, Repair & Rebuild Services
Aerospace
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Aggregate & Quarry
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Agriculture
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Air Moving
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Automotive
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Beverage
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Cement
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Commercial Laundry
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Compressors & Turbomachinery
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Cooling Towers
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Crane, Hoist & Winch
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Data Centers
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Food
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Grain Handling
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Medical Refrigeration
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Unmounted Bearings
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  • Angular Contact Ball Bearings
  • Cam Followers
  • Cylindrical Roller Bearings
  • Deep Groove Ball Bearings
  • ER Ball Bearings
  • Journal Roller Bearings
  • Needle Roller Bearings
  • Replacement Inserts
  • Self-Aligning Ball Bearings
  • Spherical Roller Bearings
  • Tapered Roller Bearings
  • Thrust Ball Bearings
  • Thrust Roller Bearings
Specialty & Plain Bearings
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  • Rod Ends
  • Spherical Plain Bearings
  • Aerospace
  • Composite
Bearing Parts & Kits
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  • Housings
  • Seals
  • Threaded Covers
  • End Caps
  • Adapters
  • Lock Collars
  • Back Side Shields
  • Take-Up Frames
  • Installation Tools
  • Bearing Parts
Plastic Modular Chain & Belt
  • All
  • Straight Running
  • Side Flexing
  • Spiral Cage Belts
TableTop Chains
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  • Straight Running
  • Side Flexing
  • Engineered Steel Chain
  • Leaf Chain
  • Roller Chain
Conveyor Sprockets & Wheels
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  • TableTop® and MatTop® Sprockets
  • Industrial Chain Sprockets
Conveyor Components
  • All
  • Product Guide & Brackets
  • Curves, Straight Tracks, & Return Systems
  • Frame Support & Levelers
  • Other Conveyor Solutions
  • Mounted Ball Bearings
Metal Wire Mesh Belts
  • All
  • Straight Line Positive Drive
  • Metal Wire Mesh Accessories
Conveying Systems
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Bulk Handling Components
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  • Idlers
  • Industrial Chain Conveyor Components
Gear Drives & Geared Motors
  • All
Barrel Couplings
  • All
Chain Couplings
  • All
Disc Couplings
  • All
Driveshaft Couplings
  • All
Elastomeric Couplings
  • All
  • Jaw and Wrap
  • Tire
Flange Couplings
  • All
Fluid Couplings
  • All
Gear Couplings
  • All
Gear Spindles
  • All
Grease
  • All
Grid Couplings
  • All
Locking Assemblies & Shrink Discs
  • All
Rigid Couplings
  • All
Shaft Guards
  • All
Torque Limiters/Torque Overload Devices
  • All
Torsionally Soft Couplings
  • All
AC Motors - NEMA
  • All
  • Definite Purpose Motors
  • Electronically Commutated Motors
  • Explosion Proof Motors
  • Farm/Agriculture Motors
  • General Purpose Motors
  • HVAC/R Motors
  • Permanent Magnet Motors
  • Pump Motors
  • Severe Duty Motors
  • Special Voltage Motors
  • Variable Speed Motors
  • Washdown Motors
AC Motors - IEC
  • All
  • Definite Purpose Motors
  • General Purpose Motors
  • Washdown Motors
DC Motors
  • All
  • Explosion Proof Motors
  • General Purpose Motors
  • Low Voltage Motors
  • Metric Motors
  • SCR Motors
  • Sub-Fractional Motors
  • Washdown Motors
Gearmotors
  • All
  • AC Gearmotors
  • DC Gearmotors
HVAC/R Motors
  • All
Motor Accessories
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Centrifugal Blowers
  • All
Draft Inducer Blowers
  • All
Centrifugal Fans
  • All
Axial Fans
  • All
Crossflow Blowers
  • All
Inline Gearboxes
  • All
Parallel Shaft Gearboxes
  • All
Precision Gearboxes
  • All
Right Angle Gearboxes
  • All
  • Helical Hypoid
  • Helical Bevel
  • Bevel
  • Worm
Shaft Mount Gearboxes
  • All
Gearbox Parts & Kits
  • All
Custom Gearbox Solutions
  • All
Chain Components
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  • Chain Accessories
  • Chain Links and Pins
Conveyor Components
  • All
  • Bucket Elevator Components
  • Conveyor Accessories
Drop Forged Chain
  • All
Engineered Steel Chain
  • All
  • Conveyor Chain
  • Drive Chain
  • Elevator Chain
  • Welded Steel Chain
Idlers
  • All
Leaf Chain
  • All
Roller Chain
  • All
Silent Chain
  • All
Sprockets & Wheels
  • All
  • <span class="border-bottom pb-1 nav-all-link">All Sprockets and Wheels</span>
  • Sprockets
  • Wheels
Belt Drives
  • All
  • Adjustable Motor Bases
  • Belt Drive Accessories
  • Belts
  • Synchronous Drives
  • V-Belt Sheaves
Bushings
  • All
  • Q-D Bushings
  • Shaft Mount Taper Bore Bushings
  • Split Taper Bushings
  • Taper Bore Bushings
Mechanical Clutches
  • All
  • Mechanical Cam Clutches
  • Torque Overload Devices
Tighteners & Idlers
  • All
  • Drive Tighteners
  • Flat Face Idlers
  • Gear Idlers
  • Gearbelt Pulley Idlers
  • Idler Bushings
  • Sprocket Idlers
  • Tightener Shafts
  • V-Belt Idlers
Open Gearing
  • All
Farm Solutions
  • All
  • Non PTO Products
  • PTO Products
Condition Monitoring Systems
  • All
Load Bank
  • All
Switchgear
  • All
Transfer Switches
  • All
Reliability Services and Condition Monitoring
  • All
Coupling Recertification
  • All
Custom Conveyor Design
  • All
Gap Walk
  • All
Installation, Repair & Rebuild Services
  • All
Product Cross Reference
  • All
Product Selectors
  • All
Calculators
  • All
Product Configurators
  • All
The Dealer Toolbox
  • All
V-Belt Drive Kits
  • All
Request a Quote
  • All
Where To Buy
  • All
eCommerce
  • All
A2L Solutions
  • All
Motor Glossary
  • All
Quick Reference Motor Dimensions
  • All
Software Downloads
  • All
IP69K Washdown Solutions
  • All
Bearings IIoT
  • All
Product Information Portal
  • All
Materials Compliance
  • All
Events
  • All
News
  • All
Regal Rexnord Insights
  • All
Training
  • All
Service Center Locations
  • All
Website Help
  • All
<span class="border-bottom pb-1 nav-all-link">All Mounted Bearings</span>
  • All
Mounted Ball Bearings
  • All
Mounted Spherical Roller Bearings
  • All
Mounted Tapered Roller Bearings
  • All
Mounted Sleeve Bearings
  • All
<span class="border-bottom pb-1 nav-all-link">All Unmounted Bearings</span>
  • All
Angular Contact Ball Bearings
  • All
Cam Followers
  • All
Cylindrical Roller Bearings
  • All
Deep Groove Ball Bearings
  • All
ER Ball Bearings
  • All
Journal Roller Bearings
  • All
Needle Roller Bearings
  • All
Replacement Inserts
  • All
Self-Aligning Ball Bearings
  • All
Spherical Roller Bearings
  • All
Tapered Roller Bearings
  • All
Thrust Ball Bearings
  • All
Thrust Roller Bearings
  • All
<span class="border-bottom pb-1 nav-all-link">All Specialty & Plain Bearings</span>
  • All
Rod Ends
  • All
Spherical Plain Bearings
  • All
Aerospace
  • All
Composite
  • All
<span class="border-bottom pb-1 nav-all-link">All Bearing Parts & Kits</span>
  • All
Housings
  • All
Seals
  • All
Threaded Covers
  • All
End Caps
  • All
Adapters
  • All
Lock Collars
  • All
Back Side Shields
  • All
Take-Up Frames
  • All
Installation Tools
  • All
Bearing Parts
  • All
<span class="border-bottom pb-1 nav-all-link">All Plastic Modular Chain and Belt</span>
  • All
Straight Running
  • All
Side Flexing
  • All
Spiral Cage Belts
  • All
<span class="border-bottom pb-1 nav-all-link">All TableTop Chains</span>
  • All
Straight Running
  • All
Side Flexing
  • All
Engineered Steel Chain
  • All
Leaf Chain
  • All
Roller Chain
  • All
TableTop® and MatTop® Sprockets
  • All
Industrial Chain Sprockets
  • All
Traction Wheels
  • All
<span class="border-bottom pb-1 nav-all-link">All Conveyor Components</span>
  • All
Product Guide & Brackets
  • All
Curves, Straight Tracks, & Return Systems
  • All
Frame Support & Levelers
  • All
Other Conveyor Solutions
  • All
Mounted Ball Bearings
  • All
<span class="border-bottom pb-1 nav-all-link">All Metal Wire Mesh Belts</span>
  • All
Straight Line Positive Drive
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Boston Gear XOR-8.984X.139 - 51490

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Catalog #:51490
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Product Specifications

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General Specifications

UPC: 781711514900 HTC: 4016.93.5010
Country of Origin: China
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