A‑1 O‑Ring Kit 382Pcs NBR70 O Ring Repair Box, Rubber Sealing Rings for Automotive Sealing
Model / SKU: A1‑ORING‑KIT‑382
A‑1 O‑Ring Kit repair box, total 382 pieces, 30 different sizes, made of NBR70 nitrile rubber. Oil‑resistant, good temperature resistance. Assorted rubber sealing rings widely used for automotive sealing, machinery maintenance and aftermarket repair work. Convenient plastic storage case for parts organization.
Tags: NBR o‑ring kit, rubber sealing rings, automotive sealing, o‑ring repair box
Product photos
Key specs: specifications: Model:A‑1 O‑Ring Kit｜Material:NBR70 nitrile rubber｜Sizes:30 different specifications｜Total quantity:382 PCS｜Storage:Blue plastic sorting box｜Application:Automotive and machinery sealing repair | Size: Model:A‑1 O‑Ring Kit｜Material:NBR70 nitrile rubber｜Sizes:30 different specifications｜Total quantity:385 PCS｜Storage:Blue plastic sorting box｜Application:Automotive and machinery sealing repair
- specifications: Model:A‑1 O‑Ring Kit｜Material:NBR70 nitrile rubber｜Sizes:30 different specifications｜Total quantity:382 PCS｜Storage:Blue plastic sorting box｜Application:Automotive and machinery sealing repair
- Size: Model:A‑1 O‑Ring Kit｜Material:NBR70 nitrile rubber｜Sizes:30 different specifications｜Total quantity:385 PCS｜Storage:Blue plastic sorting box｜Application:Automotive and machinery sealing repair
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size | Model:A‑1 O‑Ring Kit｜Material:NBR70 nitrile rubber｜Sizes:30 different specifications｜Total quantity:385 PCS｜Storage:Blue plastic sorting box｜Application:Automotive and machinery sealing repair |
Pricing: request a quote (B2B / wholesale).
Product details
This A‑1 O‑Ring Kit repair box contains 382 pieces assorted NBR70 O‑rings covering 30 common metric sizes. It is a practical maintenance spare‑parts kit for automotive sealing and general machinery repair.
All o‑rings are manufactured from NBR nitrile rubber, featuring excellent oil‑resistant performance, moderate heat‑resistance and anti‑aging property. The matched blue plastic storage box keeps different sizes separated, avoids loss and easy for field repair carrying. Widely used in auto repair shops, equipment maintenance workshops, parts wholesale and export business.
Core functions
- Seal hydraulic oil, gear oil, lubricant and coolant for automotive assemblies
- Prevent liquid and gas leakage on pipe joints, valve and fitting connections
- Convenient assorted kit for emergency on‑site repair replacement
- Compact case for neat storage and quick size selection
Material and process
- Material：NBR70 nitrile rubber
- Hardness：70 Shore A
- Key properties：Oil‑resistant, wear‑resistant, anti‑aging, moderate temperature resistance
Working temperature:‑20℃ ~ +120℃
Manufacturing features
Precision molded metric standard O‑ring dimensions.
Good compatibility with engine oil, gear oil, hydraulic oil and coolant.
Hard plastic sorting box with separate compartments for each size.
Upgrade option：FKM fluororubber o‑ring kit for higher‑temperature working conditions.
Application and compatibility
Product Type：Assorted O‑Ring repair kit box
Size range：30 common metric sizes, total 382 pieces
Compatible media：Motor oil, gear oil, hydraulic oil, grease, coolant.
Fit application：Automotive sealing, vehicle maintenance, hydraulic and pneumatic machinery repair.
Buyer reminder：This is aftermarket repair spare kit. Please confirm exact dimension (inner diameter & cross‑section) before installation. Improper size selection will cause leakage.
Selection guide
Selection Tips
- Confirm required inner diameter and cross‑section of O‑ring before picking from kit.
- Standard NBR70 for general oil and coolant environment; select FKM upgrade for high‑temperature scenarios.
- Inspect groove, fitting surface; remove burrs, dirt and old seal residue before assembly. Scratches will cause leakage.
Installation Steps
Preparation
Clean sealing groove and mating surface thoroughly.
Pre‑lubrication
Apply compatible oil or grease on O‑ring surface, avoid sharp tool scratch.
Fit installation
Place O‑ring into groove smoothly, do not twist or over‑stretch the ring.
Assembly
Assemble fittings carefully, avoid cutting O‑ring by thread or sharp edges.
Pressure test
After assembly, perform pressure test to check for leakage.
Packaging and delivery
- Inner package：Individual blue plastic sorting box.
- Outer package：Export carton.
- Packing quantity：1 set / box.
- MOQ：Stock items no MOQ, sample order supported.
- Lead‑time：In‑stock goods ship within 3‑5 working days; custom‑order 30‑45 working days.
- Custom options：Custom logo printing available, custom‑order MOQ≥100 sets.
Shipping protection: Shock‑resistant carton to avoid box deformation during transit.
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‑1 O‑Ring Kit used for?
A‑1 O‑Ring Kit contains 385 pieces NBR70 metric o‑rings of 30 sizes, widely used for automotive sealing, machinery and hydraulic repair work.
What material is this O‑ring repair box?
Material:NBR70 nitrile rubber, hardness 70 Shore A, working temperature ‑20℃ ~ +120℃, good oil‑resistant performance.
How many sizes and pieces in this kit?
30 different metric sizes, total quantity 382 pieces, packed in blue plastic sorting box.