136x156x14 mm TG Rotary Shaft Oil Seal NBR, Brown Threaded Metal Case Seal

Product Overview

This is a threaded case seal at 136 x 156 x 14 mm. Instead of being pressed into the housing, the metal case carries external threads and is wound in, which gives a controlled axial position and a metal to metal static joint on units where a plain press fit is hard to set accurately.

At a glance:

136x156x14 mm | NBR (nitrile butadiene rubber) | single lip, garter spring, metal case with external mounting threads | made in Xingtai, Hebei, China | working range -30 C to +100 C (short peaks to +120 C)

The 14 mm wide body is longer than a plain lip seal because the threaded section takes up part of the height. The single NBR lip is loaded by a garter spring and runs on the 136 mm shaft.

Key Features & Benefits

• Threaded case locates the seal: The case screws into the housing, so the axial depth is set by the thread rather than by fitting pressure, which makes the lip position repeatable.
• Winds in the right direction: The threads are cut to suit assembly from the outside; the seal is rotated in by hand or with a light tool, not hammered home.
• Metal to metal static joint: The threaded interface clamps against the housing face and closes the static leak path without sealant in most units.
• Nitrile sealing lip: NBR handles mineral and gear oil from -30 C to +100 C with short peaks to +120 C and holds contact on a running shaft.
• Spring keeps the lip loaded: Radial force stays close to design value as the lip beds in, which is what stops a slow weep starting after the first service.
• Easier field service: Because the seal winds out rather than being levered out, the housing bore is less likely to be scratched during replacement.

Dimensions & Specification

Specification	Value
Inner Diameter (ID)	136 mm
Outer Diameter (OD)	156 mm
Width / Height	14 mm
Material	NBR (nitrile butadiene rubber)
Colour	Brown
Structure	Single lip, garter spring, metal case with external mounting threads on the outer diameter
Seal Type	Rotary shaft oil seal
Marking	VKEFOT
Continuous Service Temperature	-30 C to +100 C (short peaks to +120 C)
Brand	VKEFOT
Origin	Xingtai, Hebei, China

Dimensions are nominal and are quoted as inner diameter x outer diameter x width, with the 14 mm covering the full case height including the threaded section. Confirm thread form and depth against the housing before ordering.

Material & Construction

The sealing lip and the moulded outer face are NBR (nitrile butadiene rubber) bonded to a threaded steel case. Nitrile is used here because these units normally run on mineral or gear oil at ordinary temperatures, and it covers -30 C to +100 C with short peaks to +120 C. The garter spring keeps the lip loaded on the shaft as it wears. The case threads carry the axial locating load, which is why the metal part is the working element and not just a carrier. Where continuous heat or synthetic fluid is expected, the same 136 x 156 x 14 size can be quoted in FKM for duty to about +200 C.

Quality Control and Inspection

• Incoming: compound hardness checked before release to production.
• In process: thread form and pitch check, case concentricity, lip geometry and spring seating checked at set intervals.
• Final: inner diameter, outer diameter and width measurement, thread gauge check, hardness, lip edge inspection and marking check, then packing count verification.
• Traceability: inspection results for each batch are recorded and kept; the inspection scope can be agreed before order confirmation.

A pre shipment inspection by the buyer or a nominated third party can be arranged; state it in the enquiry so it is included in the quotation.

Customization and OEM Service

packaging and logo available upon request

Packaging, Carton and Delivery

Standard packing is individual polybag, inner carton, then export carton. Carton marks, labels and barcodes are printed to buyer specification.

Lead time for standard sizes is typically 7 to 15 working days after order confirmation, and longer for sizes that are not held as standard stock. Minimum order quantity depends on whether the size is a stocked standard or made to order. Pricing, MOQ, freight and trade terms are confirmed in the written quotation. Send an RFQ with quantity and destination port.

How to Order

The more of this you include, the faster and more accurate the quotation:

1. Size: 136 x 156 x 14 mm and the thread form of the housing, where it is known.
2. Quantity and destination: pieces required, destination country and port.
3. Material: NBR as standard, or FKM and HNBR for hotter or more aggressive duty.
4. Marking and packaging: seal print and carton labelling requirements.
5. Sample or drawing: send the old seal or a housing sketch, since the thread has to match.
6. Working conditions: temperature, lubricant and shaft speed, if available.

Frequently Asked Questions

How do I confirm this seal fits my assembly?
Measure the shaft at 136 mm and the housing thread at 156 mm, and check the full case height of 14 mm against the housing depth. Because this is a threaded seal, the thread form must also match, so send the old part or a housing sketch.

What are the exact dimensions of this oil seal?
136 mm inner diameter, 156 mm nominal outer thread diameter and 14 mm overall height. These are nominal values, so confirm thread form and depth against the housing before ordering.

What is the minimum order quantity?
MOQ depends on whether this threaded size is stocked or produced for you. State the quantity you need and the quotation confirms the MOQ together with pricing tiers.

What is the lead time, and can you ship by sea or air?
Standard sizes usually ship within 7 to 15 working days after order confirmation. Sea and air shipments are both arranged, with freight and transit time confirmed for your destination.

Can you supply FKM or HNBR instead of NBR?
Yes. The same geometry can be quoted in FKM for continuous duty to about +200 C and synthetic fluids, or in HNBR where abrasion and ozone resistance matter more. Confirm at the enquiry stage.

Do you provide samples, and are they free?
Samples can be arranged for evaluation. Sample and freight costs are quoted per request, and on a confirmed bulk order the sample charge is normally credited against the order value.

Can you produce our packaging and logo?
packaging and logo available upon request.

What information do you need to quote?
Size or a photo of the removed seal, thread form and direction, quantity, material, working temperature and fluid, marking and packing needs, and the destination port.

Request a Quotation

Send the 136 x 156 x 14 size, the housing thread details if you have them, quantity and destination, and we reply with MOQ, lead time, packing and price.

VKEFOT Seals: oil seals, O-rings and custom rubber parts. Xingtai, Hebei, China.