NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes
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NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple SizesNBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes

NBR TC Oil Seal Double Lip Rotary Shaft Seal — 35mm & 38mm Shaft, Multiple Sizes

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Beschreibung

NBR TC Double-Lip Oil Seal for 35mm & 38mm Shafts — Stop Leaks, Block Contaminants

When a worn or incorrectly sized rotary shaft oil seal lets lubricant escape or allows dirt and moisture in, the damage to bearings and gearboxes adds up fast. Mechanics, maintenance technicians, and equipment builders working with 35mm and 38mm shafts need a reliable, dimensionally accurate seal they can trust — and that's exactly what these NBR TC double-lip oil seals deliver.

Each seal is a TC-type (also listed as TG4 / FB) double-lip rotary shaft seal made from NBR (nitrile butadiene rubber) with a rigid metal outer case. The inner diameter (ID) is 35mm (≈1.378" / 1-3/8") or 38mm (≈1.496" / 1-1/2"), with outer diameters (OD) ranging from 46mm to 80mm and heights from 7mm to 12mm — available in multiple sizes to match your exact housing bore and groove depth. Pack quantities range from 1 to 25 pieces per order.

These NBR TC oil seals are well suited for gearbox output shaft sealing, agricultural equipment axle seals, industrial motor shaft applications, and general-purpose rotary shaft sealing where a metric double-lip seal is required. The secondary dust lip makes them a practical choice for environments where airborne particles or splash water are a concern.

ℹ️ Compatibility Note: These seals fit metric shafts with 35mm or 38mm outer diameter. Verify all three dimensions — ID × OD × Height — against your housing before ordering. Dimensions follow DIN 3760 / ISO 6194 standards and are generally interchangeable with TC, TG4, and FB type seals.
⚠️ Size Confirmation: This listing covers many size combinations. Please select your exact Size (ID × OD × Height) and Pack Quantity from the variant dropdowns above. If you are unsure of your dimensions, contact us before ordering.

✅ Key Features of These NBR TC Double-Lip Rotary Shaft Oil Seals

  • 🔩TC Double-Lip Design — Primary oil-retention lip plus a secondary dust exclusion lip work together to keep lubricant in and contaminants out, extending bearing and gearbox service life.
  • 🧱NBR Nitrile Rubber Construction — Nitrile rubber provides solid resistance to petroleum-based oils, greases, water, and mild chemicals across a wide temperature range, making it the standard material for rotary shaft oil seal applications.
  • 🔧Rigid Metal Outer Case — The steel-reinforced outer shell ensures a secure press-fit into the housing bore, maintaining concentricity and preventing seal rotation during operation.
  • 📐Wide Size Selection — 35mm & 38mm Shaft IDs — With ODs from 46mm to 80mm and heights from 7mm to 12mm, this listing covers a broad range of metric shaft seal sizes in a single place, reducing sourcing time for maintenance teams.
  • 📦Flexible Pack Quantities — Order as few as 1 piece for a single repair or up to 25 pieces for workshop stock. Bulk packs offer a lower per-unit cost for fleet maintenance and production environments.
  • 🔄DIN 3760 / ISO 6194 Compatible — Dimensionally interchangeable with TC, TG4, and FB type seals from major manufacturers, simplifying cross-referencing and direct replacement in existing equipment.

📐 Technical Specifications — NBR TC Rotary Shaft Oil Seal

Seal Type TC (Double Lip) — also TG4 / FB
Material NBR (Nitrile Butadiene Rubber) with metal outer case
Shaft Inner Diameter (ID) 35mm (≈1.378" / 1-3/8") or 38mm (≈1.496" / 1-1/2")
Outer Diameter (OD) 46mm – 80mm (see variant options)
Height (Width) 7mm – 12mm (see variant options)
Lip Configuration Primary oil lip + secondary dust exclusion lip
Operating Temperature Typically –40°F to +250°F (–40°C to +120°C)
Shaft Speed Typically up to 4–8 m/s (contact us to confirm for your application)
Pressure Rating Low-to-medium pressure; typically ≤0.05 MPa
Dimensional Standard DIN 3760 / ISO 6194
Pack Quantity 1, 2, 3, 5, 8, 10, or 25 pieces (see variant options)
Country of Origin China

❓ Frequently Asked Questions

How do I choose the right oil seal size?

Measure three dimensions: the shaft outer diameter (= seal ID), the housing bore diameter (= seal OD), and the groove depth (= seal Height). For example, a 35mm shaft in a 52mm bore with a 7mm groove needs a 35 × 52 × 7mm seal. Always verify all three dimensions before ordering — a seal that is even 1mm off in any dimension will not seat or seal correctly.

How do I convert these metric dimensions to inches?

Divide millimeters by 25.4 to get inches. Common conversions for this listing: 35mm ≈ 1.378" (≈1-3/8"), 38mm ≈ 1.496" (≈1-1/2"), 52mm ≈ 2.047", 62mm ≈ 2.441", 72mm ≈ 2.835", 7mm ≈ 0.276", 10mm ≈ 0.394", 12mm ≈ 0.472". Always order by the metric dimensions for an exact fit.

What load or pressure can these oil seals handle?

TC-type NBR oil seals are generally designed for low-to-medium pressure applications — typically up to approximately 0.05 MPa (≈7 psi) and shaft speeds up to around 4–8 m/s under standard conditions. For high-speed spindles, high-pressure hydraulic shafts, or extreme-temperature environments, please contact us to confirm suitability before ordering.

Can these seals be used outdoors or in wet environments?

NBR nitrile rubber offers good resistance to water, petroleum-based oils, greases, and mild weather exposure. The TC double-lip design adds a secondary dust lip that helps exclude water splash and airborne particles. For prolonged submersion or exposure to aggressive chemicals (ketones, strong acids, ozone), a different elastomer such as FKM (Viton) may be more appropriate.

What shaft and housing standards are these seals compatible with?

These are metric-dimensioned seals following DIN 3760 / ISO 6194 standards. They are dimensionally interchangeable with TC, TG4, and FB type seals from major manufacturers including SKF, FAG, NSK, and equivalent aftermarket brands. They fit standard metric shafts with 35mm or 38mm outer diameters.

What is the difference between TC, TG4, and FB seal types?

All three are trade designations for the same basic double-lip rotary shaft seal construction: a primary oil-retention lip, a secondary dust exclusion lip, and a metal outer case. TC is the most widely used designation (ISO/DIN standard). TG4 and FB are equivalent designations used by specific manufacturers. The seals in this listing are functionally and dimensionally equivalent across all three designations.

Which pack size should I order?

For a single repair or replacement, a pack of 1 or 2 is typically sufficient. Packs of 5 or 8 suit small workshops keeping common sizes on hand. Packs of 10 or 25 offer the best per-unit value for fleet maintenance operations, production lines, or distributors stocking multiple sizes.

🛒 Select your size and pack quantity above, then add to cart — ships from our US warehouse.

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