58x70x7.5/7mm TB Type Oil Seal | Metal Case NBR Rotary Shaft Seal for Auto & Industrial Use
Model / SKU: 58-70-7.5-7-tb-nbr-std
58×70×7.5/7mm TB type oil seal with exposed metal outer case and premium NBR sealing lip, built-in carbon steel garter spring. High-quality universal aftermarket rotary shaft seal with good oil resistance and wear resistance, widely used for automotive, agricultural machinery and industrial equipment rotating shaft sealing. Factory direct supply with stable stock, ideal for auto parts distributors, repair workshops and industrial parts procurement.
Tags: TB type oil seal, 58x70mm shaft seal, metal case oil seal, NBR rotary seal, small size oil seal, aftermarket auto seal, industrial shaft seal
Product photos
Key specs: Inner diameter mm: 58 | Outer diameter mm: 70 | Height mm: 7.5 | Material: NBR | Size: ID 58mm × OD 70mm × Thickness 7.5/7mm | Material: NBR sealing lip + Cold-rolled steel outer case + Carbon steel garter spring | Structure: TB type single-lip metal-cased seal | Type: Universal aftermarket replacement part
- Inner diameter mm: 58
- Outer diameter mm: 70
- Height mm: 7.5
- Material: NBR
- Size: ID 58mm × OD 70mm × Thickness 7.5/7mm
- Material: NBR sealing lip + Cold-rolled steel outer case + Carbon steel garter spring
- Structure: TB type single-lip metal-cased seal
- Type: Universal aftermarket replacement part
- Standard: ISO/TS 16949 compliant
- Application: Automotive, agricultural & industrial rotating shaft sealing
- Size: ID 58mm × OD 70mm × Thickness 7.5/7mm
- Material: NBR sealing lip + Cold-rolled steel outer case + Carbon steel garter spring
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size | ID 58mm × OD 70mm × Thickness 7.5/7mm |
| Material | NBR sealing lip + Cold-rolled steel outer case + Carbon steel garter spring |
| Structure | TB type single-lip metal-cased seal |
| Type | Universal aftermarket replacement part |
| Standard | ISO/TS 16949 compliant |
| Application | Automotive, agricultural & industrial rotating shaft sealing |
Pricing: request a quote (B2B / wholesale).
Product details
This 58×70×7.5/7mm TB-type oil seal is a universal metal-cased rotary shaft sealing solution, widely applied in automotive auxiliary shafts, agricultural machinery, industrial motors and general hydraulic equipment.
It features an exposed cold-rolled steel outer case for rigid mounting and stable positioning in the housing bore, paired with a precision-machined NBR sealing lip and an integrated carbon steel garter spring. The spring maintains consistent radial preload on the shaft surface to ensure reliable sealing performance under continuous rotation and vibration. It effectively retains lubricating oil and grease inside the housing, and blocks external dust and impurities from invading internal components.
Manufactured under ISO/TS 16949 quality management system with strict dimensional tolerance control, it is a direct replacement for standard industry size seals. We maintain stable bulk stock to support fast delivery and volume procurement for global aftermarket and industrial channels.
Core value for buyers
- Standard industry interchange dimensions, direct drop-in replacement
- Rigid metal case for secure press-fit installation
- Cost-effective factory direct pricing for bulk sourcing
- Stable quality consistency for repair and maintenance
Material and process
- Material：Premium grade NBR (nitrile butadiene rubber) sealing lip, cold-rolled steel outer case, carbon steel garter spring
- Structure：TB type single-lip metal-cased rotary shaft oil seal
- Hardness：70±5 Shore A
- Key performance：Oil resistant, wear resistant, dust-proof, anti-aging
Working temperature range: -30℃ ~ +120℃ (NBR version)
Manufacturing process
Integrated vulcanization bonding between rubber lip and metal case
Precision grinding of sealing lip edge for uniform contact pressure
Dimensional inspection per production batch before shipment
Quality control aligned with general sealing part standards
Upgrade option：FKM (fluoroelastomer) version available for higher temperature and chemical resistance requirements
Application and compatibility
- Product Type：Universal aftermarket TB-type metal-cased oil seal
- Core dimensions：ID 58mm × OD 70mm, thickness 7.5mm / 7mm
Compatible fluids: Lubricating oil, bearing grease, general hydraulic oil
Fit applications
Automotive transmission auxiliary shaft sealing
Agricultural machinery rotating shaft sealing
Industrial motor and pump shaft sealing
General mechanical equipment bearing housing sealing
Suitable for：Auto parts distributors, independent repair workshops, agricultural parts suppliers, industrial parts traders
Buyer notice：This is a universal aftermarket replacement part. Please confirm shaft diameter, housing bore size and seal thickness before ordering. Dimension mismatch will cause lubricant leakage after installation.
Selection guide
Selection Guide
- Confirm shaft ID 58mm, housing OD 70mm, required thickness 7.5/7mm and TB metal-case structure.
- Standard NBR version for general working conditions (-30℃~120℃); select FKM upgrade for high-temperature and chemically aggressive environments.
- For volume procurement projects, contact us for exclusive bulk pricing.
Installation Steps
Surface Preparation
Thoroughly clean the housing bore and shaft surface, remove old seal residue, dirt, rust and burrs.
Pre-lubrication
Apply matching lubricating oil or grease evenly on the sealing lip and shaft mating surface. Dry installation is strictly prohibited.
Orientation Confirmation
The sealing lip faces the lubricant cavity side; the metal case open end faces outward.
Press-fit Installation
Use a dedicated press tool to press the seal in evenly and vertically. Never strike the seal directly to avoid deformation and lip damage.
Post-installation Check
Ensure the seal sits fully flush inside the housing bore without tilt. Inspect the sealing lip for nicks and scratches.
Packaging and delivery
Inner packaging：Each piece individually packed in anti-dust poly bag to protect the sealing lip.
Outer packaging：Standard export corrugated carton with shock-proof padding. Custom packaging with private label available.
Packing quantity：Adjustable per bulk order requirements.
MOQ：No minimum order for stock items; sample orders supported for quality evaluation.
Lead time
Stock items：Ship within 2-5 working days after payment
Custom private label / packaging orders: 25-40 working days
Large volume bulk orders: Lead time to be confirmed based on quantity
Custom services：Private label printing, custom packaging design, consolidated shipping for mixed SKUs
Shipping terms：EXW, FOB, CIF available
Export documents：Commercial invoice, packing list, certificate of origin available on request
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 58x70x7.5mm TB oil seal used for?
It is widely used for automotive auxiliary shafts, agricultural machinery, industrial motors and general rotating shaft sealing, retaining lubricant and blocking dust.
What does TB type oil seal mean?
TB type means the seal has an exposed metal outer case for rigid mounting, with a rubber sealing lip and garter spring inside.
What material is this 58mm shaft seal made of?
Made of premium NBR nitrile rubber sealing lip with cold-rolled steel outer case and carbon steel garter spring, working temperature -30℃ to +120℃.