What thread or shaft standards are these seals compatible with?

These TC oil seals fit standard metric shafts and bores. They are compatible with most metric-dimensioned housings. Confirm your shaft and bore dimensions match the listed ID x OD x Thickness before ordering.

TC Oil Seal Ring NBR Double Lip Rotary Shaft Seal — ID 30mm 31mm 32mm

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TC Oil Seal Ring NBR Double Lip Rotary Shaft Seal — ID 30mm 31mm 32mm

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Sizes (ID x OD x Thickness): 30 x 37 x 4mm

Packing QTY (Piece): 2 PCS

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$2.67 USD

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In stock (500 units), ready to be shipped

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TC Oil Seal Ring NBR Double Lip — Reliable Rotary Shaft Sealing for ID 30–32mm Applications

When a worn or leaking shaft seal causes oil drips, contaminated bearings, or premature drivetrain failure, finding an exact-fit replacement fast is critical. Mechanics, equipment technicians, and serious DIYers working on gearboxes, pumps, axles, and agricultural machinery need seals that match precise metric dimensions — not close-enough approximations. These TC oil seal rings are stocked in a wide range of ID × OD × thickness combinations to cover the most common 30mm, 31mm, and 32mm shaft applications.

Each seal features a steel skeleton (TC construction) encased in NBR (nitrile rubber), with a double-lip design. The inner diameter (ID) ranges across 30mm, 31mm, and 32mm; outer diameters (OD) span from 37mm (≈1.46") up to 80mm (≈3.15"); thickness options run from 4mm (≈0.16") to 13mm (≈0.51"). Available in 2 PCS or 10 PCS packs to suit single repairs or workshop stock.

Typical use cases include replacing seals on tractor PTO shafts, hydraulic pump housings, automotive differential pinion shafts, and industrial conveyor gearboxes — anywhere a metric rotary shaft seal with NBR double lip construction is specified. The wide OD and thickness selection makes these a practical go-to for rotary shaft sealing across light machinery and vehicle drivetrain repair.

🔵 Compatibility Note: These are metric TC skeleton oil seals. Confirm your shaft ID, bore OD, and housing depth (thickness) before ordering. Dimensions are listed as ID × OD × Thickness in millimeters. See the FAQ below for a sizing guide.

✅ Key Features of These TC Oil Seal Rings

🛡️Double-Lip NBR Construction — The primary lip retains lubricant while the secondary dust lip blocks dirt and moisture, making these TC oil seal rings effective in contaminated or wet environments.
🔩Steel Skeleton (TC) Body — The metal-reinforced casing holds its shape under press-fit installation and resists distortion in tight housings, a key advantage over rubber-only seals.
📐Wide Size Matrix — With ID options of 30mm, 31mm, and 32mm paired with ODs from 37mm to 80mm and thicknesses from 4mm to 13mm, this range covers a broad spectrum of metric rotary shaft seal applications.
🛢️NBR Oil Resistance — Nitrile rubber is compatible with mineral-based oils, gear lubricants, and water, making these seals suitable for gearbox, pump, and axle shaft sealing tasks.
📦Flexible Pack Quantities — Order 2 PCS for a single repair job or 10 PCS to stock your workshop — both options are available for every size combination.
⚙️Standard Metric Fit — Dimensioned to metric standards for straightforward drop-in replacement on equipment that specifies TC-type shaft seals in the 30–32mm ID range.

📐 Technical Specifications — TC Skeleton Oil Seal Rings

Seal Type	TC (Double Lip, Metal Skeleton)
Material	NBR (Nitrile Rubber) with Steel Casing
Inner Diameter (ID)	30mm (≈1.18"), 31mm (≈1.22"), 32mm (≈1.26")
Outer Diameter (OD)	37mm–80mm (≈1.46"–3.15") — see variant options
Thickness	4mm–13mm (≈0.16"–0.51") — see variant options
Lip Configuration	Double Lip (primary sealing lip + dust exclusion lip)
Temperature Range	Typically −40°C to +120°C (−40°F to +248°F) for NBR
Fluid Compatibility	Mineral oils, gear oils, water (contact us to confirm synthetic fluid compatibility)
Packing Quantity	2 PCS or 10 PCS per order
Dimension Format	ID × OD × Thickness (mm)
Application	See variant options
Country of Origin	Contact us to confirm

⚠️ Sizing Tip: Always measure your existing seal or housing before ordering. The three numbers in each variant (e.g., 30 × 52 × 8mm) represent shaft ID, bore OD, and seal thickness respectively.

❓ Frequently Asked Questions

How do I choose the right TC oil seal size?

Measure three dimensions: the shaft inner diameter (ID), the bore outer diameter (OD), and the housing depth (thickness). Match all three to the variant listed as ID × OD × Thickness. For example, 30 × 52 × 8mm means a 30mm shaft, 52mm bore, 8mm thick — approximately 1.18" × 2.05" × 0.31". If your old seal is still intact, you can read the dimensions stamped on its face or measure with calipers.

What load or pressure can these TC oil seals handle?

TC skeleton oil seals are generally rated for low-to-medium pressure applications. They are typically used in static or slow-to-moderate rotary shaft environments such as gearboxes, axles, and pump housings. For high-pressure hydraulic circuits, a different seal type is generally recommended. Contact us if you need to confirm suitability for a specific pressure rating.

Are these oil seals suitable for outdoor or wet environments?

NBR (nitrile rubber) offers good resistance to petroleum-based oils, water, and mild weather exposure, making it a common choice for agricultural and outdoor equipment. For prolonged UV exposure, ozone, or contact with fuels and solvents, a Viton (FKM) seal is generally more appropriate. The double-lip design adds an extra layer of protection against water and dirt ingress.

What shaft or bore standards are these seals compatible with?

These TC oil seals are dimensioned to standard metric specifications and fit metric-dimensioned shafts and housings. They are not designed for inch-standard (imperial) bores. Confirm your shaft and bore dimensions match the listed ID × OD × Thickness before ordering. If you are unsure, measure your existing seal with calipers or contact us with your equipment model number.

What does "TC double lip" mean and why does it matter?

"TC" refers to the skeleton (metal-cased) construction type. "Double lip" means the seal has two contact lips: the primary lip retains lubricant inside the housing, while the secondary dust lip faces outward to block contaminants such as dirt, water, and debris. This dual-action design is generally preferred over single-lip seals in dirty, wet, or outdoor environments where contamination is a concern.

Can I use these seals with gear oil or transmission fluid?

NBR material is generally compatible with mineral-based gear oils and conventional automatic transmission fluids. Compatibility with fully synthetic fluids varies by formulation — check the fluid's chemical compatibility with NBR before use. If you are using a synthetic or specialty fluid, contact us to confirm suitability.

How many pieces come in each order?

Each listing offers a choice of 2 PCS or 10 PCS per order. Select your preferred packing quantity along with your size (ID × OD × Thickness) when adding to cart. The 10 PCS option is available for select sizes and is useful for workshop stocking or fleet maintenance.

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

TC Oil Seal Ring NBR Double Lip Rotary Shaft Seal — ID 30mm 31mm 32mm

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Description

TC Oil Seal Ring NBR Double Lip — Reliable Rotary Shaft Sealing for ID 30–32mm Applications

✅ Key Features of These TC Oil Seal Rings

📐 Technical Specifications — TC Skeleton Oil Seal Rings

❓ Frequently Asked Questions

TC Oil Seal Ring NBR Double Lip Rotary Shaft Seal — ID 30mm 31mm 32mm

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