54x69x8 mm Rotary Shaft Oil Seal NBR, Metal-Cased Single Lip Seal

Product Overview

A 54 x 69 x 8 mm oil seal is pressed into a housing and runs against a rotating shaft, holding oil or grease on one side and keeping dust and water on the other. This one is a single lip seal with a garter spring and a metal case, moulded in black NBR.

At a glance:

54x69x8 mm | NBR (nitrile butadiene rubber) | single lip with garter spring in a metal case | made in Xingtai, Hebei, China | working range -30 C to +100 C (short peaks to +120 C)

VKEFOT produces this size in Xingtai, Hebei, China for buyers who order by measurement. Fit is decided by three numbers on your assembly: the shaft, the housing bore and the depth available for the seal.

Key Features & Benefits

• Nitrile lip for oil and grease: NBR keeps its sealing pressure in mineral oil, grease and gear oil and stays flexible at low temperature, which suits general rotary shaft duty.
• Garter spring holds the lip: The spring keeps radial load on the shaft as the lip beds in, so sealing force does not fade away after the first few thousand hours.
• Metal case for a square press fit: A rigid case holds the outer diameter true in the bore, which stops the seal tipping and weeping at the bottom edge.
• Shallow 8 mm section: The narrow body fits housings where little depth is left behind the bearing shoulder.
• Selected by measurement: Shaft 54 mm, bore 69 mm, width 8 mm. Those three values let a stocked seal replace a worn one from stock.
• Straightforward fitting: Lubricate the lip, press in square, seat it fully, and the job is finished without special tools.

Dimensions & Specification

Specification	Value
Inner Diameter (ID)	54 mm
Outer Diameter (OD)	69 mm
Width / Height	8 mm
Material	NBR (nitrile butadiene rubber)
Colour	Black
Structure	Single lip, garter spring, metal-cased 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

Sizes are nominal production values given as inner diameter x outer diameter x width. Check them against the removed seal or against a measured shaft and housing bore before an order is released.

Material & Construction

The sealing lip is moulded from NBR (nitrile butadiene rubber), the general purpose choice for oil and grease service. It resists mineral oil, gear oil and grease across -30 C to +100 C (short peaks to +120 C) and keeps enough elasticity to follow a shaft that is slightly out of round. The rubber is bonded to a steel case and a garter spring holds the lip against the shaft. Where the duty runs hotter than that range, or the fluid is synthetic or heavily additised, the same 54 x 69 x 8 geometry can be quoted in FKM, which holds continuous duty up to about +200 C.

Quality Control and Inspection

• Incoming: compound hardness checked before release to production.
• In process: case concentricity, lip moulding, spring seating and outer diameter roundness checked at set intervals.
• Final: gauging of inner diameter, outer diameter and width, rubber 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.

Third party inspection before shipment can be arranged when requested; state it in the enquiry so it is built into 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: 54 x 69 x 8 mm, or a sketch of the housing and shaft.
2. Quantity and destination: pieces needed, destination country and port.
3. Material: NBR as standard, or FKM where the working temperature is higher.
4. Marking and packaging: what should be printed on the seal and on the carton.
5. Sample or drawing: helpful when the part is matched from a worn original.
6. Working conditions: temperature, oil type and shaft speed, where known.

Frequently Asked Questions

How do I confirm this seal fits my assembly?
Measure the shaft, the housing bore and the depth you have for the seal. If they read 54 mm, 69 mm and 8 mm, this size matches; also check that the lip material suits the oil in the unit.

What are the exact dimensions of this oil seal?
54 mm inner diameter, 69 mm outer diameter and 8 mm width. These are nominal values, so compare them with your own seal or with a measured shaft and bore before ordering.

What is the minimum order quantity?
It depends on whether 54 x 69 x 8 is held in stock or has to be produced. Tell us the quantity you need and the applicable MOQ with price breaks comes back in the quotation.

What is the lead time, and can you ship by sea or air?
Stocked sizes normally leave within 7 to 15 working days of order confirmation. Both sea and air freight are arranged, with cost and transit time quoted for your destination.

Can you supply FKM or HNBR instead of NBR?
Yes. FKM lifts the continuous limit to about +200 C, and HNBR adds ozone and abrasion resistance; both can be run in this geometry, so state the duty when you enquire.

Do you provide samples, and are they free?
Samples for evaluation are available on request. Sample and freight costs are quoted case by case, and on a confirmed bulk order the sample charge is normally credited.

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

What information do you need to quote?
The size or a photo of the old seal, quantity, material, working temperature and fluid, packing and marking requirements, and the destination port.

Request a Quotation

Send the 54 x 69 x 8 size, your quantity and your destination, and we come back with MOQ, lead time, packing details and price.

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