Rudder Port Bearings & Seals

IMPERIAL SIZE RUDDER PORT BEARING TYPE J

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RPB-J-1125

Manufacturer

Tides Marine

Product Code

RPB-J

Product Line

PORT

Price $156.04

Description

RPB-J-1125 – Type J Rudder Port Bearing for 1 1/8 Inch Rudder Stock.

* Must send in Lock Nut or Cap Nut for Correct Thread Pitch and Size.

Thread Size: Choose from available sizes.

Tides Marine RPB TYPE-J is a retrofit unit which is used with existing bronze port bearings. Consisting of a one-piece UHMW plastic housing with nitrile lip seal, they were developed to replace the conventional stuffing box used on rudder ports.

The TYPE-J unit is virtually friction free, non-corrosive and maintenance free. Performance improvements include quieter, easier and smoother steering.

  Note: To ensure correct thread size, please send Tides either the backing nut or the packing nut from your bronze rudder port assembly. We will measure the threads, machine the part and then return the backing nut or packing nut with your order.

Tides Marine RPB Type J Rudder Seals are designed to replace the flax packing and compression nut of existing bronze rudder ports. Consisting of a one-piece UHMW housing with a nitrile lip seal, the Type J is 100% watertight. It is not subject to electrolytic corrosion and provides quieter, smoother rudder system operation than the bronze stuffing box alternative.

Rudder Port Bearings Type J may be ordered online.

To determine the part number for your installation, measure the exact diameter of your rudder stock (.000″) and the diameter and thread size of the rudder port. Match these three measurements to a line in the chart below. Next, confirm that there is sufficient space to accommodate both the assembly’s diameter (Column B in the table) and height (Column C in the table on the Imperial and Metric pages).

If you are unable to match your installation measurements with those in Column A and C in the chart on the Imperial size page, simply call Tides Marine and we will machine a Type J to your specifications.

RPB Type J Imperial Sizes
Specifications (dimensions in inches)

Select RPB J Imperial Sizes 
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 2 1/2 3 1 9/16 X 14 185 RPB-J-1000-01 Buy Now
1 2 1/2 3 1 1/2 X 12 185 RPB-J-1000-03 Buy Now
1 2 1/2 3 1 9/16 X 14.25 185 RPB-J-1000-04 Buy Now
1 2 1/2 2 1/4 1 1/4 NPT X 11 1/2 185 RPB-J-1000-05 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 1/8 2 1/2 2 1/2 1 9/16 X 14 185 RPB-J-1125-01 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 1/4 3 3 1/2 1 3/4 X 12 206 RPB-J-1250-01 Buy Now
1 1/4 3 3 1/2 1 1/2 X 11 1/2 NPS 206 RPB-J-1250-02 Buy Now
1 1/4 3 3 1/2 1 7/8 X 12 206 RPB-J-1250-03 Buy Now
1 1/4 3 3 1/2 1 1/2 X 11 1/2 PIP 206 RPB-J-1250-04 Buy Now
1 1/4 3 3 1/2 1 13/16 X 14 206 RPB-J-1250-05 Buy Now
1 1/4 3 3 1/2 2 X 12 206 RPB-J-1250-06 Buy Now
1 1/4 3 3 1/2 1 3/4 X 14 206 RPB-J-1250-07 Buy Now
1 1/4 3 3 1/2 2 1/4 X 12 206 RPB-J-1250-08 Buy Now
1 1/4 3 3 1/2 1 13/16 X 16 206 RPB-J-1250-09 Buy Now
1 1/4 3 3 1/2 1 5/8 X 12 206 RPB-J-1250-10 Buy Now
1 1/4 3 3 1/2 1 3/4 X 16 206 RPB-J-1250-11 Buy Now
1 1/4 3 3 1/2 2 NPT 206 RPB-J-1250-13 Buy Now
1 1/4 3 3 1/2 2 1/8 X 12 206 RPB-J-1250-14 Buy Now
1 1/4 3 3 1 5/8 X 12 206 RPB-J-1250-20 Buy Now
1 1/4 3 3 1/2 2 X 11 1/2 NPS 206 RPB-J-1250-21 Buy Now
1 1/4 3 3 1/2 1 13/16 X 14 206 RPB-J-1250-22 Buy Now
1 1/4 3 2 3/4 1 1/2 X 11 1/2 NPS 206 RPB-J-1250-23 Buy Now
1 1/4 3 3 1 1/2 X 11 1/2 NPS 206 RPB-J-1250-24 Buy Now
1 1/4 3 3 1/2 1 7/8 X 11 1/2 206 RPB-J-1250-25 Buy Now
1 1/4 3 3 1/2 2 13/16 X 12 206 RPB-J-1250-26 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 3/8 3 3 1/2 1 13/16 X 14 212 RPB-J-1375-01 Buy Now
1 3/8 3 3 1/2 2 1/8 X 14 212 RPB-J-1375-02 Buy Now
1 3/8 3 3 1/2 2 X 16 212 RPB-J-1375-03 Buy Now
1 3/8 3 3 1/2 1 3/4 X 14 212 RPB-J-1375-04 Buy Now
1 3/8 3 3 1/2 2 1/8 X 12 212 RPB-J-1375-05 Buy Now
1 3/8 3 3 1/2 2 1/8 X 11 1/2 212 RPB-J-1375-06 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 1/2 4 3 1/2 1 3/4 X 16 250 RPB-J-1500-01 Buy Now
1 1/2 4 3 1/2 2 X 11 1/2 250 RPB-J-1500-02 Buy Now
1 1/2 4 3 1/2 2 1/8 X 14 250 RPB-J-1500-03 Buy Now
1 1/2 4 3 1/2 2 1/4 X 12 250 RPB-J-1500-04 Buy Now
1 1/2 4 3 1/2 2 3/8 X 11 250 RPB-J-1500-05 Buy Now
1 1/2 4 3 1/2 2 13/16 X 11 1/2 250 RPB-J-1500-06 Buy Now
1 1/2 4 3 1/2 2 3/4 X 12 250 RPB-J-1500-07 Buy Now
1 1/2 4 3 1/2 2 X 12 250 RPB-J-1500-08 Buy Now
1 1/2 4 3 1/2 2 1/2 X 12 250 RPB-J-1500-09 Buy Now
1 1/2 4 3 1/2 2 7/8 X 12 250 RPB-J-1500-10 Buy Now
1 1/2 4 3 1/2 2 7/8 X 8 250 RPB-J-1500-11 Buy Now
1 1/2 4 3 3/4 2 1/8 X 14 250 RPB-J-1500-12 Buy Now
1 1/2 4 3 1/2 2 1/8 X 11 1/2 250 RPB-J-1500-13 Buy Now
1 1/2 4 3 1/2 2 X 16 250 RPB-J-1500-14 Buy Now
1 1/2 4 3 1/2 2 1/8 X 12 250 RPB-J-1500-15 Buy Now
1 1/2 4 3 1/2 2 13/16 X 12 250 RPB-J-1500-16 Buy Now
1 1/2 4 3 1/2 1 1/2 X 11 1/2 NPS 250 RPB-J-1500-17 Buy Now
1 1/2 4 3 1/2 2 1/16 X 14 250 RPB-J-1500-18 Buy Now
1 1/2 4 3 1/2 2 3/16 X 12 250 RPB-J-1500-19 Buy Now
1 1/2 4 3 1/2 2 1/4 X 16 250 RPB-J-1500-20 Buy Now
1 1/2 4 3 1/2 1 7/8 X 12 250 RPB-J-1500-21 Buy Now
1 1/2 4 3 2 1/8 X 11 1/2 250 RPB-J-1500-22 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
1 3/4 4 4 2 X 11 1/2 250 RPB-J-1750-01 Buy Now
1 3/4 4 4 2 1/2 X 12 250 RPB-J-1750-02 Buy Now
1 3/4 4 4 2 1/2 X 14 250 RPB-J-1750-03 Buy Now
1 3/4 4 4 2 3/4 X 12 250 RPB-J-1750-04 Buy Now
1 3/4 4 4 2 1/2 X 8 250 RPB-J-1750-05 Buy Now
1 3/4 4 4 2 7/8 X 8 250 RPB-J-1750-06 Buy Now
1 3/4 4 4 2 13/16 X 12 250 RPB-J-1750-07 Buy Now
1 3/4 4 4 2 1/4 X 12 UN-2B 250 RPB-J-1750-08 Buy Now
1 3/4 4 4 2 1/4 X 16 250 RPB-J-1750-09 Buy Now
1 3/4 4 4 2 7/16 X 16 250 RPB-J-1750-10 Buy Now
1 3/4 4 4 2 7/8 X 12 250 RPB-J-1750-11 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
2 4 4 2 1/2 X 8 300 RPB-J-2000-01 Buy Now
2 4 4 2 7/8 X 12 300 RPB-J-2000-02 Buy Now
2 4 4 2 5/8 X 12 300 RPB-J-2000-03 Buy Now
2 4 4 2 7/8 X 16 300 RPB-J-2000-04 Buy Now
2 4 4 2 13/16 X 12 300 RPB-J-2000-05 Buy Now
2 4 4 3 X 8 300 RPB-J-2000-06 Buy Now
2 4 4 2 7/8 X 8 300 RPB-J-2000-07 Buy Now
2 4 4 2 13/16 X 12 O/S 300 RPB-J-2000-08 Buy Now
2 4 4 2 3/4 X 12 300 RPB-J-2000-09 Buy Now
2 4 4 2 7/8 X 12 300 RPB-J-2000-10 Buy Now
2 4 3 1/2 2 5/8 X 12 300 RPB-J-2000-11 Buy Now
2 4 4 2 1/2 X 12 300 RPB-J-2000-13 Buy Now
2 4 4 2 3/4 X 13 300 RPB-J-2000-14 Buy Now
2 4 4 2 9/16 X 12 300 RPB-J-2000-15 Buy Now
2 4 4 2 5/8 X 11 1/2 300 RPB-J-2000-16 Buy Now
2 4 3 1/2 2 5/8 X 12 300 RPB-J-2000-17 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
2 1/4 4 1/2 4 3 1/4 X 12 325 RPB-J-2250-01 Buy Now
2 1/4 4 1/2 4 2 7/8 X 12 325 RPB-J-2250-02 Buy Now
2 1/4 4 1/2 4 3 X 12 325 RPB-J-2250-03 Buy Now
2 1/4 4 1/2 4 3 3/8 X 12 325 RPB-J-2250-03 Buy Now
2 1/2 4 1/2 4 3 1/4 X 12 350 RPB-J-2500-01 Buy Now
2 1/2 4 1/2 4 3 1/2 X 8 350 RPB-J-2500-02 Buy Now
2 1/2 4 1/2 4 3 5/8 X 12 350 RPB-J-2500-03 Buy Now
2 1/2 4 1/2 4 3 1/2 X 12 350 RPB-J-2500-04 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
2 1/2 4 1/2 4 3 1/4 X 12 350 RPB-J-2500-01 Buy Now
2 1/2 4 1/2 4 3 1/2 X 8 350 RPB-J-2500-02 Buy Now
2 1/2 4 1/2 4 3 5/8 X 12 350 RPB-J-2500-03 Buy Now
2 1/2 4 1/2 4 3 1/2 X 12 350 RPB-J-2500-04 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
2 3/4 5 4 1/2 4 1/4 X 12 375 RPB-J-2750-04 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
3 5 4 1/2 4 1/4 X 12 400 RPB-J-3000-02 Buy Now
3 5 4 1/2 3 3/4 X 12 400 RPB-J-3000-03 Buy Now
Rudder Stock OD Overall Diameter Overall Height Thread Guage and Size Retaining Ring Part Number Buy Online
A B C D
3 1/2 5 1/2 5 4 1/4 X 8 450 RPB-J-3500-01 Buy Now

Tides Marine offers many custom sizes and dimensions. Please call for any size or dimension you do not see here.

RPB-J Installation Guide

The following is a description of the installation procedures associated with the RPB Type-J rudder seal. Installation instructions are included with each unit and should be followed closely.

  1. Inspect that area of the rudder stock where the lip seal will rest and confirm that there is clean, smooth stock available to accept the lip seal.
  2. Block the rudder into position and disconnect the steering arm and rudder collar.
  3. Remove the blocking and carefully lower the rudder so that the rudder stock is beneath the upper rudder bearing. Confirm that there is sufficient clearance between the end of the stock and the underside of the shelf to add the Type-J unit.
  4. Remove the packing nut (and backing nut, if present). To ensure proper thread size in the finished Type-J, send the backing nut to Tides when placing your order. It will be returned with your unit. Remove the flax packing.
  5. Inspect the upper end of the rudder stock. Remove any burrs, nicks or sharp edges which might damage the lip seal during installation or operation.
  6. Replace the backing nut and thread to the bottom of the bronze rudder port’s threaded barrel. Insert the red installation hat completely into the Type-J making certain that it covers the thin sealing edge of the lip seal.
  7. Coat the rudder port threads with thread sealant.
  8. Thread the Type-J onto the rudder port and tighten with a strap wrench. Turn the backing nut up against the bottom of the Type-J and tight
  9. Carefully jack the rudder back into position. The rudder stock will pass through the red installation hat and upper bearing. Block in position.
  10. Reconnect the steering arm and rudder collar.

 

Note: Before installing the rudder, insert the red installation hat into the lip seal. When rudder is in place, remove, invert and replace it on top of the Type-J unit to keep debris off the lip seal during use.

Complete Type-J Installation Guide may be downloaded HERE

Lead Times Update:

Due to increases in demand, current lead times have been extended.

Standard SureSeals and Rudder Bearings not in stock: 10-12 business days
Standard Upper Bearings not in stock: 12-15 business days
Custom Parts (excluding Sailtracks): 28 business days

Sailtracks: 7-10 business days

We appreciate your understanding.

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