S-91101A040 1.28" ID x 2.036" OD ASME B18.21.1 Split Lock Washers
Split Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through the split lock design that maintains constant spring tension under dynamic loads
- Exceptional durability with Rockwell C38 hardness steel construction that withstands repeated use in demanding applications
- Precise compatibility with 1 1/4" screws thanks to exact 1.28" ID dimensional accuracy
- Reliable performance backed by ASME B18.21.1 standard compliance for consistent quality and interchangeability
- Enhanced safety and stability from the 2.036" OD that provides optimal bearing surface distribution
- Environmental compliance assurance with RoHS 3 and REACH standards for global industrial use
- Heavy-duty capability supported by 0.312" thickness that handles high torque applications effectively
Professional Applications & Engineering Value
This steel split lock washer delivers critical engineering solutions for vibration-resistant fastening in demanding industrial environments. The ASME B18.21.1 certified construction ensures reliable performance in heavy machinery, automotive assemblies, and construction equipment where constant motion and stress would compromise standard fasteners. The split lock washer type creates continuous spring action that compensates for material relaxation and thermal expansion, preventing joint failure in 1 1/4" screw applications. With Rockwell C38 hardness, this washer maintains its structural integrity under extreme pressure and repetitive loading cycles, making it ideal for manufacturing equipment, transportation systems, and industrial infrastructure where fastener failure could result in costly downtime or safety hazards.
Specification Summary & Compliance
This split lock washer features precise inch dimensions with 1.28" ID, 2.036" OD, and 0.312" thickness, manufactured to ASME B18.21.1 specifications for standard lock washers. The product maintains dimensional accuracy per industry standards and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance control.
