36x65x12/19 TB oil seal — automotive rotary shaft seal with dust lip
Model / SKU: TB-36-65-12-19-NBR
This aftermarket TB oil seal 36x65x12/19 mm is made in NBR with integrated dustproof edge. It serves automotive rotary shaft sealing for importers and repair networks; lead time 7–15 working days — RFQ with size, qty and destination.
Tags: 36x65x12/19mm, TB rotary shaft seal, dust lip oil seal, automotive shaft seal, NBR oil seal
Product photos
Key specs: Inner diameter mm: 36 | Outer diameter mm: 65 | Height mm: 12/19 | Material: NBR | Material: NBR | Structure: TB metal outer shell oil seal with dustproof lip | specifications: 36x65x12/19 mm | Material: NBR
- Inner diameter mm: 36
- Outer diameter mm: 65
- Height mm: 12/19
- Material: NBR
- Material: NBR
- Structure: TB metal outer shell oil seal with dustproof lip
- specifications: 36x65x12/19 mm
- Material: NBR
- Structure: TB metal outer shell oil seal with dustproof lip
- Size: 36x65x12/19 mm
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Material | NBR |
| Structure | TB metal outer shell oil seal with dustproof lip |
| Size | 36x65x12/19 mm |
Pricing: request a quote (B2B / wholesale).
MOQ / commerce notes: Lead time 7–15 working days
Product details
This aftermarket TB rotary shaft oil seal is sized 36x65x12/19 mm, constructed with metal outer shell and built-in dustproof edge, NBR sealing lip. It is designed for automotive rotary shaft applications requiring protection against dust and splash contaminants.
VKEFOT manufactures oil seals, O-rings and custom rubber seals in Xingtai and exports to Europe, North America, Middle East and Southeast Asia.
Features & Benefits
The extended dustproof edge blocks dirt, mud and splash water before contaminants reach the main sealing lip.
Spring-loaded primary lip maintains consistent contact pressure on rotating shafts to retain lubricating oil.
Metal outer shell delivers rigid interference fit within housing bore, reducing movement under vibration.
NBR material provides oil resistance, wear resistance and moderate corrosion resistance against mineral lubricants.
This is an aftermarket replacement seal; verify shaft, bore and working condition before order.
Factory production MOQ typically 100–5,000 pcs; this SKU quantity confirmed on quotation. Standard stock lead time runs 7–15 working days.
FKM material upgrade is available for higher temperature requirements, with custom lead time 25–40 working days.
Material & Process
- Sealing lip：NBR (Nitrile Butadiene Rubber). Outer casing: painted steel skeleton, stainless steel garter spring.
Typical operating temperature for NBR: -30°C to +120°C. FKM version can run -20°C to +200°C, confirm compound grade with RFQ. - Compatible media：mineral engine oil, gear oil and petroleum-based lubricants.
Applications & Compatibility
Commonly listed for automotive rotary shaft sealing where dust and splash exposure occurs.
Aftermarket replacement. Verify shaft diameter, housing bore and installation dimension before order.
Selection & Installation
Selection Tips
Check ID 36 mm, OD 65 mm, widths 12 mm / 19 mm. Confirm operating temperature and lubricant type before ordering.
Installation Steps
- Clean rotary shaft and housing bore, remove burrs, rust and old seal residue.
- Lubricate sealing lip with matching lubricant; dry installation forbidden.
- Keep seal parallel to housing, press evenly using installation sleeve.
- Apply pressure only on seal outer metal face, never strike the sealing lip directly.
- After seating, rotate shaft manually to check for binding or abnormal friction.
Packaging & Delivery
Neutral PE bag plus export carton; quantity per carton typically 50–200 pcs, adjustable.
Lead time 7–15 working days for this standard spec.
Factory production MOQ typically 100–5,000 pcs; this SKU quantity confirmed on quotation.
Samples and small trial lots for stocked sizes; freight confirmed on RFQ.
Custom marking and FKM material orders require 25–40 working days.
Payment terms, inspection reports and warranty confirmed on quotation.
Send an inquiry with size (ID×OD×height in mm), quantity, destination and duty for a firm lead time.
FAQ
I only have a competitor/OEM part number—can you cross-reference?
Yes. Send the reference PN, ID×OD×height in mm, and duty (media, temperature, pressure, speed). We match equivalents in the catalog; the Cross Reference page also searches by keyword. Final selection follows drawing and duty confirmation — do not order from a photo alone.
Do you support OEM/ODM, private packing and marking?
Yes — OEM/ODM from drawings or samples, plus agreed packing and marking. Share target-market compliance needs and annual volume; RFQ confirms process, tooling cost and cadence. VKEFOT is the export brand of the Xingtai factory, not a trading desk.
TC vs TB oil seal: which should I specify?
For a rotary shaft that needs a dust lip plus oil lip, start with TC (rubber-covered dual-lip is common); TB is typical when a semi-metal case needs a stiffer bore fit. Shaft diameter, housing, runout and dust still decide. Send ID×OD×height in mm and speed on the RFQ — not only a competitor photo.
NBR vs FKM oil seal for hot engine oil?
Continuous engine-oil duty near 120°C or fuel exposure should be reviewed as FKM; general mineral oil at moderate temperature and cost-sensitive repair jobs often stay NBR. Brown color is not proof of FKM. The quote names the grade and temperature limit — do not order by color.
Oil seal vs O-ring: when do I use which?
Use a metal-cased radial shaft (skeleton) oil seal for rotating shafts; use an O-ring for static glands or reciprocating grooves. An O-ring on a rotary shaft wears out quickly. VKEFOT makes both — state motion type (rotary/static/reciprocating) and ID×OD×section on the RFQ.
Cassette seal vs dual-lip TC for dusty construction equipment?
Ag gearboxes and construction travel shafts with mud and long service intervals should be reviewed as cassette/combined seals; many automotive hub repair jobs stay dual-lip TC. Cassette packs are thicker and need different bore and axial space. A job-site photo is not enough — send ID×OD×height.
Xingtai oil seal factory vs trading company — how do I tell?
VKEFOT is the export brand of Xingtai Hanchi Intelligent Technology Co., Ltd. Mixing, vulcanization and outgoing inspection run in Xingtai, then goods export to Europe, North America, the Middle East and Southeast Asia. A trading desk usually cannot change compound or cut tooling. For OEM drawings, ask who runs the process and QC — not only catalog price.
What is a skeleton / radial shaft oil seal?
A skeleton oil seal is a metal-cased radial shaft seal: the rubber lip rides the shaft and the case holds interference in the bore. Common styles include TC, TB and TA. Minimum spec is ID×OD×height in mm, compound and duty. VKEFOT catalogs automotive and industrial shaft seals; trust the product-page dimensions.
What do ID, OD and height mean on an oil seal RFQ?
ID is inside diameter (shaft), OD is outside diameter (bore), height is axial width, all in millimetres. Missing any one blocks a cross-reference. Example: 56×112×8/10 means 56 mm ID, 112 mm OD, 8/10 mm height. Put those three numbers and the compound on the RFQ.
Which oil seal for an automotive wheel hub or differential pinion?
Hub repair jobs often use dual-lip TC; differential pinion shafts often need a secondary lip or split height (e.g. 8/10 or 12/22 mm). Use measured or OEM dimensions — not a marketplace title. VKEFOT application pages cover drivetrains and hubs; send an OEM number or ID×OD×height on the RFQ.
How to select oil seals for ag gearbox and PTO shafts?
Ag gearboxes and PTO shafts see dust and shock — prefer a dust lip or cassette, with NBR or FKM matched to gear oil and temperature. Do not force a passenger-car hub seal onto a PTO shaft. Send shaft, bore, height and whether mud/water is present, then RFQ.
What matters for pump, valve and compressor shaft seals?
Match media (oil, water, gas) and temperature first, then lip style and compound; do not default to cheap NBR for high speed or dry running. Put shaft runout and eccentricity on the RFQ. VKEFOT application cases include pumps, valves and compressors — still use measured sizes.
Does a brown oil seal mean it is FKM?
No. Brown NBR is common; color is not proof of FKM. For heat or fuel duty, write temperature and media on the RFQ so the factory names the grade. Ordering by color is a frequent cause of early leak.
Can you quote an oil seal from a photo only?
Not as a firm quote. We need at least ID×OD×height in mm, ideally compound and speed. A photo can show lip count and case style; it does not replace dimensions. Incomplete RFQs get a request for those three numbers before price.
If a new oil seal leaks quickly, is it always a bad seal?
Not always. Rough shaft finish, runout, cocked installation or the wrong compound also leak early. Check size and media/temperature match before blaming the part, then inspect the journal. Note time-to-fail (e.g. 50 hours) on the RFQ so we diagnose — do not just buy a cheaper seal.
What is needed for private-label OEM packing of oil seals?
Private packing and marking need annual volume, target-market compliance and artwork; tooling cost and cadence are confirmed on the RFQ — not a one-line “please OEM”. VKEFOT runs OEM/ODM after drawings or samples are complete.
Who is VKEFOT and how does it relate to Xingtai Hanchi?
VKEFOT manufactures oil seals, O-rings and custom rubber seals in Xingtai and exports to Europe, North America, Middle East and Southeast Asia. The manufacturer is Xingtai Hanchi Intelligent Technology Co., Ltd. Use this wording on quotes and certificates — do not invent alternate spellings of the brand.
What is a TB oil seal with dust lip used for?
A TB oil seal with dust lip retains lubricant on rotating shafts while blocking dust, mud and splash water. This 36x65x12/19 NBR variant fits automotive rotary shaft assemblies exposed to external contaminants.
What is the difference between TB and TC oil seal?
TB oil seals have a bare metal outer shell for bore interference fit. TC types have rubber-covered OD. Both can include dust lips to protect the main sealing lip from dirt ingress.
What operating temperature can NBR TB oil seal withstand?
This NBR TB seal has a typical working range of -30°C to +120°C. Select FKM upgrade if your application runs at higher continuous temperatures, confirm compound grade on RFQ.