- 1 7/8"x1/4"
- 2 13/16"x1/2"
- 3 3/4"x1/2"
- 5"x5/8"
- 5"x7/8"
- 6 1/2"x7/8"
- 250 g
- 500 g
- 50 g
- 15 g
- 90 g
- 175 g
- Description
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Tecnoseal Magnesium USA Type Rudder Disc Anode Pairs with Hardware – 1 7/8" to 6 1/2"
The Tecnoseal USA Type Magnesium Disc Anodes are circular sacrificial anode sets for marine rudder applications. The range includes R1MG, R2MG, R3MG, R4MG, R5MG and R7MG models and is supplied as sets of two magnesium anodes with mounting hardware.
The range covers nominal inch sizes from 1 7/8" x 1/4" to 6 1/2" x 7/8". The available models differ in outside diameter, overall height, Ø1 and Ø2 mounting dimensions and weight.
Each set includes a stainless steel hex nut and socket cap screw. The captive hex nut is designed to facilitate underwater installation.
Key Features
- Brand: Tecnoseal
- Series: USA Type
- Product Type: Rudder disc sacrificial anode set
- Material: Magnesium
- Application: Marine rudders
- Configuration: Set of two anodes
- Available Models: R1MG, R2MG, R3MG, R4MG, R5MG and R7MG
- Nominal Inch Sizes: 1 7/8" x 1/4", 2 13/16" x 1/2", 3 3/4" x 1/2", 5" x 5/8", 5" x 7/8" and 6 1/2" x 7/8"
- Outside Diameter Range: Ø47–165 mm
- Catalogue Pair Weight Range: 0.03–1.00 kg
- Mounting Hardware: Stainless steel hex nut and socket cap screw included
Available Models and Technical Specifications
Tecnoseal Code Nominal Size Diameter Height Ø1 Ø2 Weight per Pair Calculated Weight per Anode R1MG 1 7/8" x 1/4" Ø47 mm 7 mm 9.5 mm 5 mm 0.03 kg / 30 g 15 g R2MG 2 13/16" x 1/2" Ø72 mm 11 mm 11 mm 7 mm 0.10 kg / 100 g 50 g R3MG 3 3/4" x 1/2" Ø92 mm 13 mm 13 mm 8.5 mm 0.18 kg / 180 g 90 g R4MG 5" x 5/8" Ø127 mm 15 mm 13 mm 9 mm 0.35 kg / 350 g 175 g R5MG 5" x 7/8" Ø127 mm 23 mm 13 mm 9 mm 0.50 kg / 500 g 250 g R7MG 6 1/2" x 7/8" Ø165 mm 22 mm 13 mm 9 mm 1.00 kg / 1000 g 500 g
Tecnoseal R1MG – 1 7/8" x 1/4"
- Product Code: R1MG
- Material: Magnesium
- Nominal Size: 1 7/8" x 1/4"
- Outside Diameter: 47 mm
- Height: 7 mm
- Ø1: 9.5 mm
- Ø2: 5 mm
- Weight per Pair: 30 g
- Calculated Weight per Anode: 15 g
Tecnoseal R2MG – 2 13/16" x 1/2"
- Product Code: R2MG
- Material: Magnesium
- Nominal Size: 2 13/16" x 1/2"
- Outside Diameter: 72 mm
- Height: 11 mm
- Ø1: 11 mm
- Ø2: 7 mm
- Weight per Pair: 100 g
- Calculated Weight per Anode: 50 g
Tecnoseal R3MG – 3 3/4" x 1/2"
- Product Code: R3MG
- Material: Magnesium
- Nominal Size: 3 3/4" x 1/2"
- Outside Diameter: 92 mm
- Height: 13 mm
- Ø1: 13 mm
- Ø2: 8.5 mm
- Weight per Pair: 180 g
- Calculated Weight per Anode: 90 g
Tecnoseal R4MG – 5" x 5/8"
- Product Code: R4MG
- Material: Magnesium
- Nominal Size: 5" x 5/8"
- Outside Diameter: 127 mm
- Height: 15 mm
- Ø1: 13 mm
- Ø2: 9 mm
- Weight per Pair: 350 g
- Calculated Weight per Anode: 175 g
Tecnoseal R5MG – 5" x 7/8"
- Product Code: R5MG
- Material: Magnesium
- Nominal Size: 5" x 7/8"
- Outside Diameter: 127 mm
- Height: 23 mm
- Ø1: 13 mm
- Ø2: 9 mm
- Weight per Pair: 500 g
- Calculated Weight per Anode: 250 g
Tecnoseal R7MG – 6 1/2" x 7/8"
- Product Code: R7MG
- Material: Magnesium
- Nominal Size: 6 1/2" x 7/8"
- Outside Diameter: 165 mm
- Height: 22 mm
- Ø1: 13 mm
- Ø2: 9 mm
- Weight per Pair: 1000 g
- Calculated Weight per Anode: 500 g
Model Selection
Select the required model according to the nominal inch size and corresponding metric mounting dimensions. R4MG and R5MG both have a 5" outside diameter, but differ in thickness: R4MG is 5" x 5/8", while R5MG is 5" x 7/8".
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