30x46x8 mm Power Steering Oil Seal NBR, Rubber-Covered Rotary Shaft Seal

Product Overview

A 30 x 46 x 8 mm power steering oil seal sits on the input or pitman shaft of a hydraulic steering box or pump: it holds power steering fluid back from the shaft and keeps dust out of the unit. This one uses a nitrile lip held by a garter spring inside a rubber-covered body.

At a glance:

30x46x8 mm | NBR (nitrile butadiene rubber) | single lip with garter spring, rubber-covered 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 wholesalers and steering repair programmes that buy by dimension. The shaft diameter, the bore in the steering housing and the width available decide the fit.

Key Features & Benefits

• Seals steering fluid: The nitrile lip is chosen for mineral and synthetic hydraulic steering fluid and keeps its sealing force when the unit is hot.
• Spring-loaded lip: A garter spring holds the lip against the shaft as it wears, so contact pressure does not fall away over time.
• Rubber-covered body: The rubber outside diameter grips and seals the housing bore, which suits aluminium steering casings that are easily scored by a metal case.
• Compact 8 mm width: A thin body suits shallow steering housings where a wider seal will not seat fully and would stand proud of the housing face.
• Selected by measurement: The fit is set by shaft diameter, bore and width, so a stocked size can be matched to a worn unit from stock.
• Straightforward fitting: A square press into the bore with a greased lip is the whole procedure, which suits workshop conditions and keeps returns low.

Dimensions & Specification

Specification	Value
Inner Diameter (ID)	30 mm
Outer Diameter (OD)	46 mm
Width / Height	8 mm
Material	NBR (nitrile butadiene rubber)
Colour	Black
Structure	Single lip, garter spring, rubber-covered outer diameter
Seal Type	Power steering 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 measured as inner diameter x outer diameter x width. Check them against your own sample, shaft and housing bore before releasing an order.

Material & Construction

The lip is moulded from NBR (nitrile butadiene rubber), the usual choice for hydraulic steering fluid and mineral oil. NBR covers -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 lip is supported by a garter spring and the body is rubber-covered to grip the bore. Where the fluid is a synthetic ester or the unit runs hotter, the same geometry 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: lip geometry, spring seating, rubber-to-case bond and bore grip diameter checked at set intervals.
• Final: dimensional check on inner diameter, outer diameter and width, hardness, visual inspection 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.

Buyers can arrange third-party inspection before shipment; state the requirement in the enquiry so it can be 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.

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: 30 x 46 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 for higher temperature or synthetic fluid.
4. Packaging requirement: carton marks, label data, barcode requirement.
5. Sample photo or drawing: where the part is matched from a worn original.
6. Operating conditions: fluid type, temperature and shaft speed, if known.

Frequently Asked Questions

How do I confirm this seal fits my assembly?
Measure the shaft the seal runs on, the bore in the steering housing and the depth available, then compare the lip and the rubber-covered diameter with the seal you removed. Those three values decide whether the fit is correct.

What are the exact dimensions of this oil seal?
30 mm inner diameter, 46 mm outer diameter and 8 mm width. Check them against your own sample or drawing, because counterbore depth and shaft shoulder position differ between steering units.

What is the minimum order quantity?
MOQ depends on whether 30x46x8 is held as a stocked size or made to order. Give your required quantity and we will confirm the MOQ and tiered pricing in 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. Both sea and air freight are arranged, with transit time and cost confirmed per destination.

Can you supply FKM or HNBR instead of NBR?
Yes. This size can also be produced in FKM (fluoroelastomer) or HNBR where the steering fluid or the running temperature is outside the NBR range. Confirm the compound when you enquire.

Do you provide samples, and are they free?
Evaluation samples can be arranged. Sample cost and freight are quoted per request, and on a confirmed bulk order the sample charge is normally offset against the order value.

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

What information do you need to quote?
The size, or the number on your old seal, plus quantity, fluid type, working temperature, packaging and marking requirement, destination port and preferred Incoterm. A drawing or a sample gives the closest match.

Request a Quotation

Send the 30 x 46 x 8 mm size (or the number on the seal you are replacing), quantity, destination and any branding requirement, and we will reply with MOQ, lead time, packing details and pricing.

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