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NATIONAL 99157  
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NATIONAL 99157 Specifications
Flanged Outside Diameter (Inch)1.850
Flanged Outside Diameter (MM)46.990
Installation Depth (Inch)1.023
Installation Depth (MM)25.980
MaterialStainless Steel
Overall Width (Inch)0.630
Overall Width (MM)16.000
Product DescriptionRepair Sleeve
Shaft Size (Inch)1.578
Shaft Size (MM)40.081
Shaft Size Maximum (Inch)1.578
Shaft Size Maximum (MM)40.080
Shaft Size Minimum (Inch)1.572
Shaft Size Minimum (MM)39.930
Unit of DimensionInch
Width On Shaft (Inch)0.512
Width on Shaft (MM)13.000
National® Oil Seals & Bearings has built a reputation as one of the most respected names in the industry. They have offered premium sealing and wheel end solutions for more than 75 years. Their design and engineering teams keep pace with the industry and provide advanced solutions for today's vehicles.

Features & Benefits:
  • Designed to repair damaged, grooved or worn shafts
  • Durable stainless steel construction for corrosion-free sealing surface that surpasses most original shaft specifications
  • Ideal for a shaft where indications of seal wear, such as tracks or grooves have developed
  • Ultra-thin construction (0.01/0.25mm wall thickness) allows original seal size to be used with minimal additional lip loading
  • Easy to install with removable flange and installation tool
  • Installation tool reduces sleeve distortion and allows for installation without removal from the shaft

NATIONAL Warranty Information:
12 Months