BCA
More Information for BCA NS4503N
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BCA NS4503N  
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BCA NS4503N Specifications
External Markings1.886 X 2.750 X 1.375
Flange Outside Diameter (IN)3.27
Flange Outside Diameter (MM)83.1
Housing Bore (IN)2.75
Housing Bore (MM)69.9
Inner Lip Width (in)1.375
Inner Lip Width (mm)34.9
Inside Diameter (IN)1.87
Inside Diameter (MM)47.5
Outside Diameter (IN)2.76
Outside Diameter (MM)70.1
Seal Housing MaterialSAE 1070
Sealing MaterialPolyacrylate
Shaft Diameter (IN)1.886
Shaft Diameter (MM)47.9
Spring MaterialSAE 1008
Thickness (IN)1.375
Thickness (MM)34.9
BCA seals are designed and manufactured to meat OEM standards. Advanced technologies utilizing materials like PTFE™ and Viton™, coupled with the most modern sealing design principles ensure optimal leak and contaminant protection.

Features & Benefits:
  • Multi-contact seal and grease lips keep lubricants in and contaminants out, providing continuous lubrication to reduce wear and aging
  • Superior operation in a wide range of temperatures provides optimal performance and long life
  • Low seal swell reduces torque and improves vehicle gas mileage
  • BCA engineers phyiscally validate each design to ensure accuracy in form, fit & function

BCA Warranty Information:
12 months/12,000 miles