Vetus Zinc Shaft Collar Anodes

ID 1400879

$ 28.04

1-2 weeks delivery time

Diameter, mm:

25
25.4
30
31.75
35
38.1
40
44.45
45
50
50.8
60

Vetus split zinc shaft collar anodes for cathodic protection of marine propeller shafts, available for metric shaft diameters from 25 to 60 mm and imperial sizes from 1" to 2". The two-piece collar design allows installation around the shaft and is secured with 2 or 4 bolts depending on size. Metric ZINKAS models range from 0.46 to 1.87 kg, while ZASA inch-size versions range from 0.40 to 1.40 kg. Manufactured from zinc to MIL-A-18001K specification for marine shaft installations.

Description
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Vetus Zinc Shaft Collar Anodes – Metric Ø25–60 mm & Inch 1–2"

The Vetus zinc shaft collar anodes are split sacrificial anodes designed for cathodic protection of marine propeller shafts. The two-piece construction allows the anode to be installed around the shaft without removing it.

The range includes ZINKAS models for metric shaft diameters from 25 to 60 mm and ZASA models for imperial shaft sizes from 1" to 2". Depending on size, the two halves are secured with either two or four bolts.

Metric ZINKAS Models

Product Code	Shaft I.D.	Outer Diameter	Height	Bolts	Weight
ZINKAS25C	25 mm	56 mm	56 mm	2	0.51 kg
ZINKAS30C	30 mm	56 mm	56 mm	2	0.46 kg
ZINKAS35C	35 mm	64 mm	66 mm	4	0.62 kg
ZINKAS40C	40 mm	80 mm	77 mm	4	1.10 kg
ZINKAS45C	45 mm	80 mm	77 mm	4	0.92 kg
ZINKAS50C	50 mm	93 mm	88 mm	4	1.20 kg
ZINKAS60C	60 mm	100 mm	100 mm	4	1.87 kg

Imperial ZASA Models

Product Code	Shaft I.D.	Outer Diameter	Height	Bolts	Weight
ZASA1C	1"	54 mm	55 mm	2	0.40 kg
ZASA11/4C	1 1/4"	61 mm	60 mm	2	0.53 kg
ZASA11/2C	1 1/2"	70 mm	66 mm	4	0.74 kg
ZASA13/4C	1 3/4"	80 mm	70 mm	4	1.07 kg
ZASA2C	2"	90 mm	74 mm	4	1.40 kg

Construction and Application

Material: Zinc, MIL-A-18001K
Design: Split two-piece shaft collar
Application: Marine propeller shafts
Mounting: 2 or 4 bolts depending on size
Metric Range: Ø25–60 mm shafts
Imperial Range: 1"–2" shafts

Shaft collar anodes are not recommended for high-speed vessels because water-flow turbulence and uneven anode wear can contribute to shaft imbalance. For these applications, a propeller nut with an integrated sacrificial anode is preferable.