50X72X10TC Nitrile TC Metric Oil Seal Double-Lip Shaft Seal

This 50X72X10TC Nitrile (Buna-N) Oil Seal is designed for superior shaft sealing in demanding industrial and automotive environments. Built in a double-lip TC style with a garter spring, this shaft seal ensures reliable lubricant retention while keeping out contaminants such as dust, dirt, and moisture. Manufactured in 80 Shore A durometer black Nitrile, it delivers excellent resistance to oils, fuels, and greases—making it a cost-effective, durable choice for rotating equipment.

Operating temperature: -40° to +225°F (–40° to +107°C)

Material & Performance Details

This oil seal is made from high-quality Buna-N (NBR), standard black, 70 Shore A durometer. It balances flexibility and strength, ensuring a tight fit without premature wear.

Performance strengths:

• Excellent oil and grease resistance
• Strong abrasion resistance
• Low compression set
• Good balance of sealing flexibility and durability

Chemical compatibility:

• Excellent resistance to: petroleum oils, hydraulic fluids, mineral oils, greases
• Limited capability with: water, glycol-based fluids
• Not compatible with: brake fluids, strong polar solvents, phosphate esters

Sizes & Measurements

• Cross Section (CS): 10 mm (0.39 in)
• Inside Diameter (ID): 50 mm (1.97 in)
• Outside Diameter (OD): 72 mm (2.83 in)
• Part Number: 50X72X10TC

Cross References

This TC style oil seal directly interchanges with leading brands and DIN standards, including:

• DIN 3760 TC
• SKF: CRW1 / CRWA1
• Trelleborg (TSS): TRC / TRD
• Parker: TC
• Garlock: 62 series
• NOK: TC series
• Dichtomatik: WBS

Applications & Use Cases

Ideal for sealing rotating shafts in:

• Gearboxes and transmissions
• Pumps and compressors
• Automotive wheel hubs and axles
• Agricultural and construction machinery
• General industrial machinery

Key Specifications

• Material: Nitrile (Buna-N, NBR)
• Durometer: 80 Shore A
• Color: Black
• Certifications: ISO 9001:2015 quality processes
• Temperature range: -40° to +225°F (–40° to +107°C)
• Pressure rating: up to 7 psi standard

Why Buy from The O-Ring Store LLC

At The O-Ring Store LLC, we deliver more than just seals—we deliver reliability:

• ISO9001:2015 certified quality processes
• Large USA stock for immediate delivery
• Same-day shipping on in-stock items
• Custom sizes available
• Full lot traceability and documentation available
• Expert technical support from experienced staff
• Competitive pricing without compromising quality

FAQs

Q: What does “TC” mean in this oil seal?
A: TC indicates a double-lip design with a garter spring and rubber-covered outer diameter, providing both lubricant retention and contaminant exclusion.

Q: Can this seal handle water-based fluids?
A: Nitrile offers limited resistance to water and glycol-based fluids. For continuous water exposure, EPDM or HNBR may be a better option.

Q: How do I ensure correct installation?
A: Always use proper installation tools, avoid damaging the sealing lip, and pre-lubricate the lip with the same fluid being sealed to prevent stick-slip and premature wear.