Type 1 self aligning rudder bearings with knuckle or needles.

Designed to be fitted to boats up to 45 feet  in length the Type 1 bearings feature a spherical Ertalyte® knuckle fitted within a precision machined aluminium housing.

 

This results in a bearing that is  SIMPLE,  LIGHT  and STRONG.

 

The spherical knuckle allows the bearing to self-align while the rudderstock rotates within the bearing.

 

Bearings can be used with both METALLIC and COMPOSITE rudderstock.

 

Bearings are available in any size for 20mm to 110mm in 10mm increments.

Knuckles can be bored any size to suit the rudderstock OD.

 

Bearings are available in 3  HOUSING STYLES  to suit all installation details : laminated, bolted, plugged, inserted to a rudder tube...

 

Aluminium bodies are anodised in our in-house anodisation plant to ensure quality and prevent corrosive action.

 

The bearing is NON- WATERTIGHT and is TO BE INSTALLED  with either a FULL RUDDER TUBE  between the upper and lower bearing or HALF RUDDER TUBE between the lower bearing + a seal carrier located partway up the rudder stock above the waterline.

 

See  below installation sketches for further details.

 

Type 1 Bearings are BUREAU VERITAS  &  CE approved.

TYPE  1  DESIGNATION 

 

JP3 bearing designations all follow a common format :

 

10.xx.xx

15.xx.xx

aluminium body + ertalyte® knuckle

aluminium body + STAINLESS  STEEL needles within  ertalyte® knuckle


The second numbers to the housing style 

XX.10.XX : bearing inserted in rudder tube

XX.11.XX : bearing to be laminated

XX.13.XX : bearing to be bolted

XX.14.XX : bearing to be plugged

 

The last two to the maximum stock diameter in centimeters.

I.e. .XX.XX.09 will be bored between 81 to 90mm.

HOUSING STYLES

Type 1 bearings are available with 3 housing styles :

Type 10.11.xx

to be LAMINATED

 


The bearing is CYLINDRICAL  and outer surface is machined with a groove to ensure a good bond with the bearing is laminated into the hull.

 

The bearing can be used as either an upper or lower bearing.


One end of the bearing is machined to match the rudder tube

Type 10.13.xx

to be BOLTED

 


The bearing is FLANGED for bolting to the deck.


Lower side of the bearing is machined to match the rudder tube.


Watertight seal or a cap can be supplied on request.

Type 10.14.xx

to be PLUGGED

 

 

Designed for production boatyards.

 

 

 

The outer surface is the bearing is TAPERED for installation in a matching tapered recess. 

 

(See Type 10.14 Installation Guide for details)

 

The bearing can only be used a LOWER bearing.

 

Upper side of the bearing is machined to match the rudder tube.

 

Watertight seal or a cap can be supplied on request.


TYPE 1 BEARING SIZES AND LOADS  RATINGS

Bearing
Reference*

Minimum Stock Diameter
mm

Maximum Stock Diameter 
mm

Radial SWL**
kg

10.XX.03

20

34

488-1100

10.XX.04

35

44

1100-1925

10.XX.05

45

50

1925-2766

10.XX.06

51

60

2766-3608

10.XX.07

61

70

3608-5051

10.XX.08

71

80

5051-6735

10.XX.09

81

90

6735-8660

10.XX.10

91

100

8660-10825

10.XX.11

101

110

10825-13230

* The `XX” designation refers to the housing style. Each size is available in the 3 housing sizes.

** Bearing loads vary with stock size. The figures given are for minimum and maximum stock sizes.

 

Want to know more?

 

See our FAQs or e mail to info@jp3steering.com

T1_installation_EN.pdf
Adobe Acrobat Document 1.2 MB
Tool required to desinstall 10.14.XX or 15.14.XX
Outil de démontage 10.14.xx.pdf
Adobe Acrobat Document 137.8 KB

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