Rubber Stuffy Box Shaft Seal

exactly what I imagined was exactly my idea

by Holger H.

great quality had otherwise VP can be smeared better

by Matthias G.

very good ! I can only recommend. gladly again.

by Winfried H.

Fast and easy delivery, the product meets the expectations

by Helmut K.

Product data

SVB item number 17501
EAN 8033626188335
Description Rubber shaft seal with hose connection
Shaft-Ø 25 mm
Length 102 mm
For shaft 25 mm
For stern tube-Ø 43 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

SVB item number 17502
EAN 8033626188342
Description Rubber shaft seal with hose connection
Shaft-Ø 30 mm
Length 112 mm
For shaft 30 mm
For stern tube-Ø 49 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

SVB item number 17503
EAN 8033626049360
Description Rubber shaft seal with hose connection
Shaft-Ø 35 mm
Length 121 mm
For shaft 35 mm
For stern tube-Ø 55 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

SVB item number 17504
EAN 8033626188359
Description Rubber shaft seal with hose connection
Shaft-Ø 40 mm
Length 121 mm
For shaft 40 mm
For stern tube-Ø 60 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

SVB item number 17505
EAN 8033626188366
Description Rubber shaft seal with hose connection
Shaft-Ø 45 mm
Length 120 mm
For shaft 45 mm
For stern tube-Ø 65 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

SVB item number 17506
EAN 8033626049377
Description Rubber shaft seal with hose connection
Shaft-Ø 50 mm
Length 130 mm
For shaft 50 mm
For stern tube-Ø 70 mm
Hose connection 10 mm
Water-cooled Yes
Self-venting Yes
Floating ring seal No
Maintenance free No
Grease lubricated Yes
Material Rubber

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Product details

Stuffy Box with hose connection - Further development of the popular rubber Stuffy Box

On the vulcanized hose connection (3/8"), a tube is inserted and fixed with a clamp. The tube is passed over the water line and simply left open to the top. Existing air in shaft seal can easily escape and thus a permanent cooling / lubrication of the shaft seal is ensured. Via the second connection (comes as a standard with a dummy screw), optionally parts of the cooling water can be injected into the shaft seal. This is recommended for operation in tidal waters and "silt ports". The additional water provides additional rinsing and a significant increase in service time can thus be achieved.

In addition, the bushing should be lubricated with the special grease at least once a year. To do this, remove the blind screw connection, lubricate the bushing and then close it again.

For lubrication, stuffy grease must also be purchased!

Note: We recommend LOCTITE thread sealing for sealing the tube tulle. The blind stopper for regreasing the gland should be equipped with a washer/o-ring (not included).

Documents

Manual

PDF (201,62 KB)

Systems

Product safety

What other SVB customers have to say

100% real reviews

37 customer reviews

4.8 (out of 37 ratings)

5 Stars

(30)

4 Stars

(5)

3 Stars

(2)

2 Stars

(0)

1 Stars

(0)

100% recommend SVB

Advantages
Price/performance ratio (8)
Quality (8)
Mounting/Installation (7)
Leak tightness (8)
Material (2)

Disadvantages
Mounting/Installation (1)

by Reinhard M.

6/4/2026 Verified purchase Variant: 17501

shaft seal

This is the second seal I've bought, again and again.

Advantages
Material
Price/performance ratio
Quality
Mounting/Installation
Leak tightness

by Bernd K.

9/16/2025 Verified purchase Variant: 17501 in use on a Dehler Yachtbau GmbH - Dehler 34 A

Be careful when assembling

The vent nipple is not vulcanized in one piece, but screwed into a vulcanized sleeve. To seal the gland, the nipple must be unscrewed, coated with sealant, and screwed back in. Otherwise, it will drip.
Otherwise, the product is recommended.

Advantages
Price/performance ratio
Quality
Leak tightness

Disadvantages
Mounting/Installation

by Martin K.

6/10/2019 Variant: 17501

Problematic with long stern tubes

First processed to the jack Well and keeps tight. Also with the vent is wonderful. When I was watering, I checked that water came out of the vent if I held the hose below the waterline. At my ship, the stern tube is about 1m long. Therefore, I was concerned that it pulls the bush dry over the vent. However, there were no problems during normal lullablock operation - There was always water in the breather hose. Yes - until today. On the way from Bornholm to Swienemünde we had a good 6 BF, until 15 m before Swienemünde the wind suddenly dropped to zero. Of course, the 1.5..2m wave was still unchanged. Sailing did not go anymore and did not wait, because you are standing across the shaft. So machine on and with 4kn slowly swallowed. Of course, the ship has always made a good drive through the waves. No 10 minutes later I had strong vibrations in the shaft system. So despite the swell machine and the floorboards opened. The socket was really warm. Fat was enough inside, so machine on - the vibration came clearly from the socket! So I once sucked on the vent hose and had the feeling that it has long balked, until water came. Suddenly, the socket was quiet. For the test, I have the vent hose then held in a glass of water, which was empty in 1min. So we put the Pütz full of water next to the bushing and put in the hose. Interestingly, the bucket began to refill as the sea calmed down. I suspect that the jack on my ship starts to run dry at a certain speed. Luckily, we noticed that in time and could prevent major damage from water leakage. I would therefore strongly recommend a check valve in the vent hose to install, or to supply this with water. In my case, I now have a flange in the seagrass filter (located below the waterline) through which the socket can get water if necessary.

by Arkadiusz P.

6/3/2019 Verified purchase Variant: 17501

matches description.

by Anonymous 1/25/2016 Verified purchase Variant: 17506