145x170x14 mm Rotary Shaft Oil Seal NBR, Metal-Cased TC Type Shaft Seal

Product Overview

The 145 x 170 x 14 mm seal is a radial lip seal for large shafts, pressed into a 170 mm bore to keep oil inside a gearcase, reducer or bearing housing. The ribbed rubber band on the outside grips the bore so the seal cannot rotate in service, and the metal case keeps the body round.

At a glance:

145x170x14 mm | NBR (nitrile butadiene rubber) | double lip metal-cased TC with garter spring and ribbed outer band | made in Xingtai, Hebei, China | working range -30 C to +100 C (short peaks to +120 C)

At this diameter the shaft often runs slightly out of round and the housing is a split or cast component. A spring-loaded main lip follows those small movements, and the secondary dust lip on the air side keeps abrasive dirt away from the sealing edge. VKEFOT produces this size in Xingtai, Hebei, China and ships it against a confirmed order quantity.

Key Features & Benefits

• Ribbed outer band: The moulded ribs compress against the bore and stop the seal from turning with the shaft, which is the usual cause of a slow leak on large housings.
• Spring follows the shaft: A garter spring keeps lip pressure steady as the 145 mm shaft runs slightly out of round, so sealing force does not fade early in service.
• Metal case stays round: The steel case holds the outer diameter during press fitting, helping the seal enter square instead of cocking in the bore.
• Dust lip on the air side: The secondary lip blocks grit and water before they reach the sealing edge, which is what protects the shaft finish underneath.
• Wide 14 mm section: The deeper body suits housings with a long bore and gives the lip more support under side load than a thin section.
• Selected by measurement: A 145 mm shaft, a 170 mm bore and 14 mm of depth is all the information needed to match this size from stock.

Dimensions & Specification

Specification	Value
Inner Diameter (ID)	145 mm
Outer Diameter (OD)	170 mm
Width / Height	14 mm
Material	NBR (nitrile butadiene rubber)
Colour	Brown
Structure	Double lip (main sealing lip and dust lip), garter spring, metal case, ribbed outer band
Seal Type	Rotary shaft oil seal
Marking	TC 145 170 14
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. On large housings the bore can be worn or slightly oval, so measure the bore and the shaft before releasing an order.

Material & Construction

NBR (nitrile butadiene rubber) is the lip compound used here, chosen because it keeps its elasticity in mineral oil, gear oil and grease without swelling. The body is bonded to a steel case and the main lip is held against the shaft by a garter spring, while the brown compound stays flexible across -30 C to +100 C (short peaks to +120 C). If the gearbox runs hot, or the oil is a synthetic or heavily additised grade, the same 145 x 170 x 14 geometry can be produced in FKM, which takes continuous duty to about +200 C.

Quality Control and Inspection

• Incoming: compound hardness checked before release to production.
• In process: case concentricity, lip moulding, garter spring seating and rib spacing on the outer band checked at set intervals.
• Final: dimensional check on 145 mm inner diameter, 170 mm outer diameter and 14 mm width, rubber hardness, lip edge, rib profile and size 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 for the batch follow the goods, so a buyer can trace the measurements back to the production run. Third-party inspection before shipment can be arranged when it is requested at the enquiry stage.

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: 145 x 170 x 14 mm, or the measurements taken from the seal being replaced.
2. Quantity and destination: order quantity, destination country and port of discharge.
3. Material: NBR standard, or FKM if the running temperature or the oil requires it.
4. Marking and packaging: size marking, carton label data and any barcode requirement.
5. Drawing or sample: useful where the housing is worn and a repair size is being considered.
6. Working conditions: oil type, shaft speed and temperature, if these are known.

Frequently Asked Questions

How do I confirm this seal fits my assembly?
Measure the shaft at 145 mm, the housing bore at 170 mm and the depth available for the 14 mm section, then compare the lip shape with the seal you removed. All three numbers have to match before the seal can seat correctly.

What are the exact dimensions of this oil seal?
145 mm inner diameter, 170 mm outer diameter and 14 mm overall width. Housing depth and shoulder position differ between machines, so confirm against your own sample or drawing.

What is the minimum order quantity?
It depends on whether 145x170x14 is a stocked standard or produced for your order. State the quantity you need and the applicable MOQ is confirmed with the quotation.

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

Can you supply FKM or HNBR instead of NBR?
Yes. Where continuous temperature or the oil in service goes beyond the NBR range, this size can be quoted in FKM or HNBR. The choice follows the fluid and the running temperature.

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 deducted from 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 145 x 170 x 14 mm, quantity, destination port, material preference, working temperature, oil type and packaging requirement. A photo or drawing of the old seal gives the fastest answer.

Request a Quotation

Send the measurements of the seal being replaced or the size 145 x 170 x 14 mm, together with quantity, destination and any branding requirement, and the reply will carry MOQ, lead time, packing details and price.

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