TC 120x140x15mm Rubber Covered Double Lip Oil Seal NBR

This aftermarket TC rubber covered double lip oil seal measures 120mm inner diameter, 140mm outer diameter and 15mm in height, manufactured in black NBR nitrile rubber. The steel reinforcing cage is fully encapsulated in rubber, with a primary sealing lip, an integrated secondary dust lip and a garter spring maintaining uniform radial pressure on the shaft.

Importers, wholesalers and MRO buyers can submit RFQ with dimension, quantity, destination and working medium for a formal quotation. Standard production Lead Time is 7–15 days.

Features & Benefits

Fully rubber-covered outer diameter absorbs housing bore irregularities and provides reliable static sealing, well suited for aluminum housings and light-alloy bores.
Double lip design with a garter spring maintains consistent contact pressure on the shaft; the primary lip retains oil and grease while the secondary lip blocks dust and splash water.
Black NBR nitrile rubber delivers dependable oil resistance and wear resistance, compatible with mineral oils, gear greases and standard hydraulic fluids.
The garter spring compensates for normal lip wear and minor shaft run-out, helping maintain sealing performance over the service life of the seal.
Large 120x140x15mm dimensions suit heavy-duty rotary shafts in gearboxes, wheel hubs and industrial drives where standard metric TC housings are used.
This is an aftermarket replacement seal, not a genuine OEM part. Always verify shaft diameter, housing bore and application before ordering.

• MOQ：Depends on spec; typically 100–5,000 pcs. Lead Time: 7–15 days. This SKU quantity confirmed on quotation.
  Factory standard options are available for marking and packaging; confirm all requirements on RFQ.

Material & Process

• Sealing lip：NBR (nitrile butadiene rubber), black
• Reinforcement：steel cage fully encapsulated in rubber
• Spring：carbon steel garter spring
  Continuous working temperature: -30°C to +100°C; short-term peak up to +120°C. Confirm compound grade with RFQ for high-temperature or special fluid applications.
  Compatible fluids: mineral oil, gear oil, lithium grease, standard hydraulic fluids

Applications & Compatibility

Commonly listed for large gearboxes, wheel hubs, axle differentials and industrial rotating equipment. Application context commonly listed for this size — verify before order.
Aftermarket replacement. Verify shaft diameter, housing bore and OE number before order.

Selection & Installation

Selection Tips

Confirm shaft ID 120mm, housing OD 140mm and seal height 15mm. Match the NBR material to your lubricant type and operating temperature range.

Installation Steps

1. Thoroughly clean the shaft and housing bore; remove all burrs, old seal residue, rust and contamination.
2. Lightly lubricate the sealing lip and shaft with the same oil or grease used in the assembly. Do not install dry.
3. Press the seal evenly into the housing using a proper installation tool, keeping it perfectly perpendicular to the bore.
4. Do not strike the rubber lip or hammer directly on the seal. Avoid cocking or distorting it during installation.
5. After assembly, rotate the shaft by hand to check for binding, then inspect for leakage during the initial test run.

Packaging & Delivery

Standard packaging: neutral polybag per piece, packed in export cartons. Typically 30–100 pcs per carton for large sizes, adjustable on request.

• Lead Time：7–15 days for this standard spec. MOQ: Depends on spec; typically 100–5,000 pcs; this SKU quantity confirmed on quotation.
  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.