Simrit Rotary Shaft Seal 50x65x18 COMBI SF8 NBR

Simrit Rotary Shaft Seal 50x65x18 COMBI SF8 NBR

The Rotary Shaft Seal COMBI SF8 50x65x18 NBR is a double‑lip radial oil seal engineered for rotating shafts, offering advanced protection in industrial and agricultural applications. Crafted from NBR (nitrile butadiene rubber), this seal features a combined design: primary sealing lip retains lubricant while a second wiper lip blocks dust and dirt. It is a precise replacement for Corteco 12018616B / Dana 2120605101, matching dimensions and performance.

Key Technical Features

• Diameter: Inner 50 mm x Outer 65 mm x Width 18 mm

• Type: COMBI SF8 - dual-lip design with integrated wiper

• Material: NBR (nitrile butadiene rubber) - excellent resistance to oils, grease, and ambient contaminants

• Function: Combines oil seal and dust scraper in one unit

• OEM Replacement: Equivalent to Corteco 12018616B (Dana 2120605101) standards

• Advantages: Low friction, secure sealing, extended durability, and maintenance-free operation

Designed to offer superior sealing performance in rotating axle hubs and shafts exposed to dirt, water, or abrasive environments.

FAQ - Frequently Asked Questions

What is a COMBI SF8 oil seal?
A special oil seal combining a standard sealing lip with an additional polyurethane wiper lip to protect against contaminants while permitting axial or rotary movement.

Is it compatible with Corteco 12018616B?
Yes, this seal is engineered to serve as a direct replacement for Corteco 12018616B (Dana 2120605101), matching exact dimensions and material specifications.

Why choose NBR material?
NBR offers high resistance to oils, greases, fuels, and moderate mechanical wear—ideal for heavy-duty industrial and automotive environments.

Where is this seal commonly used?
This Rotary Shaft Seal is widely used in wheel hub assemblies, drive axles, transmissions, agricultural machinery, and industrial pumps requiring robust sealing under motion.

Does it require maintenance?
Once installed, the seal operates autonomously—no further lubrication or servicing needed unless the shaft is disassembled.

Applications & Benefits

• Wheel hubs, drive shafts & axles in tractors, combines, and off‑road equipment

• Industrial rotating shafts with exposure to dust, mud, or water

• Compact installation with dual sealing barrier efficiency

• Extended operational life thanks to low-friction NBR and reliable COMBI SF8 design

• OEM-level performance with cost-effective replacement for Corteco part number

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