HHEJNBB

7749N11

7749N11 Corrosion-Resistant Extension Springs with Loop Ends
$6.57 /Pack of 3    info

Per Pack of 3

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Part Number HHEJNBB
Spring Type Extension
Length 1"
OD 0.094"
Wire Diameter 0.01"
Extended Length @ Maximum Load 2.69"
Load Max. 0.5
Spring Rate 0.25 lbf/in
Material 302 Stainless Steel
End Type Loop
Load Min. 0.04
RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/23/2024, 240 SVHC) Compliant
DFARS Specialty Metals COTS-Exempt
Country of Origin China
INTERCHANGE
The LILY Bearing part series HHEJNBB is a potential replacement for these common bearing part numbers.
LILY
HHEJNBB

NOTE:All other trademarks are the property of their respective owners.

All other trademarks mentioned herein are used for the purpose of compatibility description and product identification only. Lily Bearing is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.

Design Features of HHEJNBB Spring

HHEJNBB are engineered using materials or surface treatments that protect against moisture, chemicals, and harsh environments. The loop ends are carefully formed and often reinforced or coated to reduce stress concentration and prevent premature failure at the attachment points. These springs maintain consistent tensile performance while offering extended service life in applications where standard carbon steel springs would corrode or degrade.


What Benefits Can HHEJNBB Spring Provide?

  • Extended Service Life in Harsh Environments – 302 Stainless Steels such as stainless steel or protective coatings resist rust and chemical attack, reducing premature failure.
  • Consistent Performance Over Time – Corrosion protection helps maintain stable spring rate and load characteristics, even after long-term exposure to moisture or chemicals.
  • Improved Loop-End Reliability – Treated or corrosion-resistant loop ends are less prone to cracking and stress corrosion at high-stress attachment points.
  • Reduced Maintenance and Replacement Costs – Longer durability lowers the need for frequent inspections, lubrication, or part replacement.
  • Suitability for Outdoor and Washdown Applications – Ideal for marine equipment, food processing machinery, agricultural systems, and other environments with frequent cleaning or exposure to water.


What Can HHEJNBB Spring Be Used for?

  • Marine and Coastal Equipment – For boat hardware, docks, and lifting mechanisms exposed to saltwater and humidity.
  • Food Processing and Packaging Machinery – In washdown environments where frequent cleaning and moisture exposure are unavoidable.
  • Outdoor and Agricultural Equipment – For linkages, gates, and tension systems exposed to rain, fertilizers, and dirt.
  • Medical and Laboratory Devices – Where cleanliness, chemical resistance, and consistent performance are critical.
  • Chemical and Industrial Processing Systems – In mechanisms exposed to chemicals, vapors, or corrosive atmospheres.

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