TG 28x42x7mm NBR Threaded OD Oil Seal Rotary Shaft
Model / SKU: VKEFOT-TG-28-42-7-NBR
This aftermarket TG oil seal 28x42x7mm in NBR features a threaded outer diameter for rotary shaft sealing.
Tags: 28x42x7mm TG oil seal, threaded OD oil seal, NBR rotary shaft seal, double lip garter spring seal, aftermarket oil seal
Product photos
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size (mm) | 28x42x7 |
| Material | NBR |
| Structure | TG type threaded outer diameter double lip oil seal with garter spring |
| Size | 28x42x7mm |
Pricing: request a quote (B2B / wholesale).
MOQ / commerce notes: In stock: ships in 1 to 2 days | Not in stock but still in current production: 10 to 15 days | Not in stock and not in production: 25 to 30 days
Product details
This aftermarket TG threaded outer diameter oil seal measures 28mm inner diameter, 42mm outer diameter and 7mm in height, manufactured in black NBR nitrile rubber. It features helical threads on the outer diameter, a double-lip design with garter spring and an internal steel skeleton.
Importers, wholesalers and MRO buyers can submit RFQ with dimension, quantity, destination and working medium for a formal quotation.
Features & Benefits
The threaded outer diameter improves press-fit stability in the housing bore, resisting seal rotation under vibration and dynamic load that can occur with a smooth OD seal.
Helical thread pattern on the outer rubber surface also enhances static sealing between seal and housing, compensating for minor bore surface imperfections.
Double lip design with garter spring: primary lip retains oil and grease while the secondary dust lip blocks contaminants from reaching the sealing area.
Black NBR nitrile rubber offers good oil resistance and wear resistance, compatible with mineral oils, greases and standard lubricants.
Internal steel skeleton provides structural rigidity and maintains the seal shape under operating pressure and temperature.
This is an aftermarket replacement seal. Always verify shaft diameter, housing bore and application before ordering.
Factory standard options are available for marking and packaging; confirm all requirements on RFQ.
Material & Process
- Sealing lip：NBR (nitrile butadiene rubber), black
- Reinforcement：internal steel skeleton with externally threaded rubber coating
- Spring：carbon steel garter spring
Confirm compound grade with RFQ for special applications.
Compatible fluids: mineral oil, grease, standard lubricants
Packaging & Delivery
Standard packaging: neutral polybag per piece, packed in export cartons.
Samples and small trial lots are available for stocked sizes; sample freight confirmed on RFQ.
Send an inquiry with size (ID×OD×height in mm), quantity, destination country and duty for a firm lead time.
FAQ
What is a TG 28x42x7mm threaded OD oil seal used for?
TG 28x42x7mm black NBR threaded outer diameter oil seal is used for rotary shaft sealing in gearboxes, motors, reducers and pumps, retaining lubricants and blocking dust and contaminants.
What are the full specifications of this 28x42x7mm TG seal?
Size: 28mm inner diameter, 42mm outer diameter, 7mm height. Material: black NBR with internal steel skeleton and garter spring. Threaded outer diameter for improved press-fit.
What is the difference between TG and TC oil seals?
TG seals feature a threaded or grooved outer diameter that improves press-fit stability and resists seal rotation in the housing, while TC seals have a smooth rubber-covered outer diameter. Both use double lips and garter springs for rotary shaft sealing.
Is this 28x42x7mm TG oil seal a genuine OEM part?
No — it is an aftermarket replacement seal. Always verify dimensions, housing bore and application before purchasing.
How to install 28x42x7mm TG threaded oil seal without leakage?
1. Clean shaft and housing bore thoroughly. 2. Lubricate lip and shaft with compatible oil; do not install dry. 3. Press seal evenly with a proper tool, keeping it perpendicular. 4. Do not hammer the seal; protect threaded outer surface. 5. Rotate shaft by hand and check for leakage.
What is the MOQ and lead time for TG 28x42x7mm oil seals?
This SKU quantity confirmed on quotation. Samples are available for stocked sizes.
What information should I send for an RFQ on this TG oil seal?
Submit ID×OD×height in mm, quantity, destination country, working medium and any custom requirements for a formal quotation.
Do you support custom logo and export packaging for this seal?
Factory standard options are available for marking and packaging.