Industrial 77876SA-BX Oil Seal

Description:

The Industrial 77876SA-BX Oil Seal is used in rotating equipment to retain lubricants and prevent contaminants from entering bearing and shaft assemblies. Commonly installed in gearboxes, pumps, electric motors, compressors, conveyors, axles, and industrial power transmission systems. Maintenance teams, OEMs, and equipment service technicians use this oil seal for equipment replacement, preventive maintenance, machinery overhauls, and sealing system repairs.

Applications:

The Industrial 77876SA-BX oil seal is designed to provide reliable sealing performance in rotating shaft applications where lubricant retention and contaminant exclusion are essential. It is commonly used in industrial gear reducers, electric motors, pumps, transmissions, agricultural equipment, and heavy-duty machinery operating in demanding environments. Its single-lip design with a spring-loaded sealing element helps minimize lubricant leakage while protecting internal components from dust, dirt, and moisture.

Technical Specifications:

• Manufacturer: Industrial
• Model / Part number: 77876SA-BX
• Product type: Oil seal
• Seal type: SA radial shaft oil seal
• Shaft diameter: 7.750 in
• Outside diameter: 8.750 in
• Width: 0.625 in
• Lip material: Nitrile rubber (NBR)
• Seal configuration: Single-lip with garter spring
• Case construction: Metal outer case with reinforcing plate
• Pressure rating: Less than 10 psi
• Operating temperature: -40°F to 200°F (-40°C to 93°C)
• Mounting: Press-fit into housing bore
• Application environment: Industrial rotating equipment and power transmission systems

Common Replacements:

• Dichtomatik 77876SA oil seal
• SKF CR SA series oil seal
• National SA series oil seal