60x72x8 mm TB Metal-Cased Oil Seal NBR, Exposed Steel Outer Case Rotary Shaft Seal

Product Overview

A 60 x 72 x 8 mm TB oil seal seals a 60 mm shaft in a 72 mm machined bore. The brown rubber lip is bonded into a steel case, and the outer diameter of that case is bare metal, so the seal is a press fit in the housing and holds its shape there. This is a compact single lip seal for small gear cases, pumps and shaft ends where axial space is limited to 8 mm.

At a glance:

60x72x8 mm | NBR (nitrile butadiene rubber) | TB body, single lip in a steel case with an exposed metal outer diameter | made in Xingtai, Hebei, China | working range -30 C to +100 C (short peaks to +120 C)

VKEFOT makes this size in Xingtai, Hebei, China for workshops and parts distributors working from measurements. A metal case needs an accurate, undamaged bore to seal and to stay put, so the bore condition is worth checking alongside the shaft and the housing depth.

Key Features & Benefits

• Exposed steel outer case: The bare case presses into a machined bore and keeps its round form, which holds the lip centred on the shaft instead of letting it wander under load.
• Compact 8 mm profile: The short body fits shallow housings, so small gear cases and pump ends with little axial room can be closed without modifying the seat.
• Single lip for oil retention: One sealing lip keeps oil on the inside and keeps the fitting procedure simple, which lowers the risk of the seal being installed the wrong way.
• NBR for ordinary oil and grease: The nitrile element covers mineral oil, gear oil and grease from -30 C to +100 C, with short peaks to +120 C, and keeps its grip in cold conditions.
• Steady in a hot housing: A steel case does not swell or relax the way a rubber jacket can, so bore grip holds through the heat cycles of a running gearbox.
• Selected from measurements: The 60 x 72 x 8 dimensions compare straight against the shaft and bore, so a replacement comes from stock without a special order.

Dimensions & Specification

Specification	Value
Inner Diameter (ID)	60 mm
Outer Diameter (OD)	72 mm
Width / Height	8 mm
Material	NBR (nitrile butadiene rubber)
Colour	Brown lip with a bare metal outer case
Structure	Single lip, exposed metal outer case, steel shell body
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 production values written as inner diameter x outer diameter x width. A metal-cased seal needs a smooth, accurate bore, so check the bore finish together with the three measurements before releasing an order.

Material & Construction

The sealing element is moulded from NBR (nitrile butadiene rubber) and bonded into a steel shell, so the outside of this seal is metal rather than a rubber jacket. NBR covers mineral oil, gear oil and grease from -30 C to +100 C, with short peaks to +120 C, and keeps enough elasticity to follow small shaft runout. The steel case keeps the seal round in a hot housing and holds the press fit over time. If the position runs hotter or the oil is synthetic, the same size can be quoted in FKM (fluoroelastomer), which holds continuous duty to about +200 C.

Quality Control and Inspection

• Incoming: compound hardness checked before release to production.
• In process: case concentricity and roundness, shell wall thickness, rubber to metal bonding, lip geometry and spring seating checked at set intervals.
• Final: dimensional check on inner diameter, outer diameter and width, case roundness, rubber hardness, visual check of the lip edge and marking, then packing count verification.
• Traceability: inspection results for each batch are recorded and kept; the inspection scope can be agreed before order confirmation.

Inspection records are held by batch and remain traceable from the shipped goods. Third-party inspection before shipment can be arranged when it is requested in the enquiry.

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.

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. 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 or OE number: 60 x 72 x 8 mm, or the number stamped on your current seal.
2. Quantity and destination: required quantity, destination country and port.
3. Material requirement: NBR as standard, or FKM where oil temperature or lubricant type demands it.
4. Packaging requirement: carton marks, label data and barcode requirement.
5. Sample photo or drawing: where the seal is matched from a worn original.
6. Operating conditions: oil temperature, lubricant type, bore condition and shaft speed, if known.

Frequently Asked Questions

How do I confirm this seal fits my assembly?
Measure the shaft diameter, the housing bore and the seat depth, then compare them with the seal you removed. A metal case also needs a clean bore, so inspect the bore surface at the same time.

What are the exact dimensions of this oil seal?
60 mm inner diameter, 72 mm outer diameter and 8 mm width. Check these against your own sample or drawing, since housing depth and shoulder position differ between applications.

What is the minimum order quantity?
MOQ depends on whether the size is a stocked standard or produced to order. Send the quantity you plan to buy and the MOQ and price steps come back with the quotation.

What is the lead time, and can you ship by sea or air?
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. Sea and air freight are both arranged, with cost and transit time confirmed for your destination.

Can you supply FKM or HNBR instead of NBR?
Yes. FKM or HNBR can be produced in the same size where continuous temperature or the fluid goes past the NBR range. Confirm the compound when you send the enquiry.

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 set off 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 the number you are replacing, quantity, material, oil temperature and lubricant, bore condition, packaging requirement, destination port and preferred Incoterm.

Request a Quotation

Send the size or the number you are replacing, the quantity, the destination port and any branding requirement, and we will reply with MOQ, lead time, packing details and price.

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