Shaft seal 101.6x127x12.7 A-DUO NBR – dual-lip radial oil seal made of nitrile rubber, resistant to oil and heat
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  • Shaft seal 101.6x127x12.7 A-DUO NBR – dual-lip radial oil seal made of nitrile rubber, resistant to oil and heat

Shaft Seal 101.6x127x12.7 A-DUO NBR - Dual-Lip Radial Seal

Processing time: 2-3 days
€178.81 (net)
Price for: 1pcs.

The 101.6x127x12.7 A-DUO NBR shaft seal is a dual-lip radial seal designed for high reliability and performance in rotating machinery. Constructed of durable nitrile rubber (NBR), it effectively resists oils and contaminants while maintaining mechanical stability. Use it in gearboxes, pumps, motors, and equipment requiring two-direction sealing. Available from our warehouse in Lublin with 24-hour shipping, simmering.pl ensures you receive your product promptly. The AI-Powered Review supports confidence in its quality and longevity—choose this premium dual-lip seal for dependable operation.

📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing

Quantity

Technical Specifications & Applications of 101.6x127x12.7 A-DUO NBR Shaft Seal

Technical Description

The 101.6x127x12.7 A-DUO NBR shaft seal is a robust dual-lip radial seal (sometimes called a simering) crafted from nitrile rubber (NBR). It fits shafts with inner diameter 101.6 mm, outer housing diameter 127 mm, and a cross-sectional width (thickness) of 12.7 mm. The A-DUO configuration offers two sealing lips for enhanced performance in demanding conditions with variable pressure or direction.

Key Features & Benefits

  • Double-lip (A-DUO) design ensures superior sealing in both directions, better contamination exclusion

  • Material NBR (nitrile rubber): good compatibility with mineral oils, greases, fuels

  • Solid mechanical durability, low friction, and resistance to wear

  • Effective in sealing against dust, dirt, and external contaminants

  • Suitable for moderate temperature ranges (typical for NBR)

  • Can handle moderate shaft speeds when properly dimensioned and lubricated

Technical Specifications

Parameter Value / Range Notes
Inner Diameter (d) 101.6 mm Shaft dimension
Outer Diameter (D) 127 mm Housing bore dimension
Width / Thickness (B) 12.7 mm Cross-sectional width
Seal Type A-DUO / dual-lip radial seal Two sealing lips
Material NBR (nitrile rubber) Standard nitrile compound
Typical Temperature Range approx. -30 °C to +100 °C depends on NBR formulation
Applications shafts, gearboxes, pumps, rotating equipment radial sealing role
Limitations less suitable for high temperatures, strong solvents or aggressive acids inherent to NBR

Common Applications

This dual-lip shaft seal 101.6x127x12.7 A-DUO NBR is widely used in:

  • Gearboxes and drive assemblies

  • Pumps, motors, and rotating machinery

  • Industrial equipment where dual-direction sealing is needed

  • Systems exposed to oil, grease, dust, or external contaminants

Selection & Installation Tips

  1. Confirm your shaft and housing dimensions match 101.6 x 127 x 12.7 mm.

  2. Consider the NBR grade (hardness, compound) appropriate for your oil/media.

  3. Use a thin film of compatible lubricant during installation.

  4. Avoid damaging the sealing lips or edges—use mounting tools or protective sleeves.

  5. Ensure the shaft surface finish and hardness are within acceptable tolerances for sealing.

FAQ (Frequently Asked Questions)

Q: What is the meaning of “A-DUO” in this seal?
A: “A-DUO” refers to a dual-lip (double lip) design, offering enhanced sealing performance and protection in both rotational directions or pressure reversals.

Q: What operating temperature range does a NBR shaft seal support?
A: Commonly from about -30 °C to +100 °C, depending on the specific NBR compound (some premium NBRs may extend a bit beyond this range).

Q: Is the NBR material suitable for oil and grease?
A: Yes — NBR (nitrile rubber) is well-suited for mineral oils, greases, and many petroleum-based media, making it a common choice for industrial shaft seals.

Q: How to install it without damaging the seal?
A: Use a light coating of suitable lubricant, protect the seal lips during assembly (avoid sharp edges), and push it evenly into the bore. Do not stretch or distort the seal.

Q: What is the typical lifespan of this seal?
A: It depends heavily on application conditions (speed, temperature, media, contamination). Under good conditions, dual-lip NBR seals can last many thousands of hours of operation.

Q: Is this product immediately available?
A: 📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4 — 24h shipping ensures quick delivery for orders.

GRN
101.6X127X12.7 A-DUO
Processing time: 2-3 days

Data sheet

Diameter in. (mm)
101,6
Diameter out. (mm)
127
Height (mm)
12,7
Mark
GRN