TG 25x42x8mm NBR Threaded OD Oil Seal Gearbox
Model / SKU: VKEFOT-TG-25-42-8-NBR
This aftermarket TG oil seal 25x42x8mm in NBR with threaded OD for gearbox shafts.
Tags: 25x42x8mm TG oil seal, threaded OD oil seal, gearbox half shaft seal, NBR crankshaft front seal, double lip garter spring
Product photos
Technical summary
Product specifications. Refer to the approved drawing for dimensional tolerances and installation requirements.
| Spec | Value |
|---|---|
| Size (mm) | 25x42x8 |
| Material | NBR |
| Structure | TG type threaded outer diameter double lip oil seal with garter spring |
| Size | 25x42x8mm |
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 25mm inner diameter, 42mm outer diameter and 8mm in height, manufactured in black NBR nitrile rubber. It features a threaded outer diameter, double-lip design with garter spring and an internal steel skeleton.
Importers, wholesalers and auto repair distributors 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 and resists seal rotation under vibration, suitable for gearbox half shaft and crankshaft front end applications.
Double lip design with garter spring maintains uniform radial contact pressure; the primary lip retains gear oil while the secondary lip blocks dust and water spray.
Black NBR nitrile rubber offers good oil resistance and wear resistance, compatible with gear oils, engine oils and standard lubricants.
Internal steel skeleton with full rubber coating provides structural rigidity and reliable static sealing in the housing bore.
Compact 25x42x8mm dimensions suit small-diameter shafts commonly found in gearboxes and crankshaft front ends.
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 threaded rubber outer coating
- Spring：carbon steel garter spring
Confirm compound grade with RFQ for high-temperature applications.
Compatible fluids: gear oil, engine oil, 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 25x42x8mm threaded OD oil seal used for?
TG 25x42x8mm black NBR threaded outer diameter oil seal is used for gearbox half shaft and crankshaft front end applications, retaining gear oil or engine oil and blocking dust.
What are the full specifications of this 25x42x8mm TG seal?
Size: 25mm inner diameter, 42mm outer diameter, 8mm height. Material: black NBR with internal steel skeleton and garter spring. Threaded outer diameter.
Is this 25x42x8mm 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 25x42x8mm 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 25x42x8mm 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.