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Bronze Oar Locks, Towers, Oar Stands, 17mm Si-Bronze Oar Locks
Bronze OarLocks
OarLocks for WhiteWater

Bronze WhiteWater Oar Locks;  OregonTM Bronze Locks

Type A; 17mm x 75mm Long Shaft  (SI International Standard)

Alloy Si- Bronze CDN 876,  Suitable for WhiteWater and Saltwaer

100% Made in USA

 Fits: 17mm ID Bushings  (drill 5/8" Bushings to 17mm or 11/16")

Appurtenance: 25mm Long 2mm wire size comp. springs

 

We Offer You The Best Si-Bronze WhiteWater OarLock In North America. 

Compare To The Corporate Big Boys For A 40% Savings:  $35/ea

 

Dimensions Link:  http://rowframe.com/engineerdataraftframes.html

pro·pri·e·tar·y   (prə-prī′ĭ-tĕr′ē)

A great word for folks that want to bung your doo.  The word implies ownership.  Ownership may be of a design, a process, or some other brand of intellectual property.  The intent is to dissuade others from coping the process /design/property thus reserving it for themselves.  I consider this to be a Ferengi style of acquisition.  After all, if one has property, you protect it the old fashioned way; you patent it or copyright it.  Failure to patent and copyright leaves the property open to commerce thus benefiting all of society.

Copying a good design is both complementary and flattery.  Copying a poor design is stupidity or ignorance.  Ignorance is solved via education; hence this post.  Ask not the logic of alloying bronze with manganese, zinc, lead and car bumpers; but removing such and replacing with copper and silica. There are no better alloys for oarlocks than si-bronze.  Folks that insinuate otherwise relish in your ignorance.

A counter argument is strength.  Strength is a parameter defined by envelope of stress and strain such that zero permanent strain is achieved when a load is relaxed.  If the argument is strength, than there is no better way of achieving strength than enhancing a component’s geometry.  And, if the argument is strength, there is no better way than nesting an oarlock’s shaft in a Morse taper.  Some say nay to this proposition.  Others say graphite.

Zinc Bronze, aka Brass, have no business in OarLocks other than making them cheap.  That's why the Chinese pioneered the alloys.  Some say look at the strength.  Yeah, but it dissolves in sea water.  Perceived value from strength is a fool’s game.  Know it for what it is.

Table of Strength Ratios Based on Yield and Section Modulus

 

SI(unit)

Dec (ins)

I(in^4)

c=___(ins)

S(in^3)

%increase

5/8

n/a

0.625

0.00749

0.31250

0.023968

Baseline=1

16

mm

0.630

0.00773

0.31496

0.024551

2.43%

17

mm

0.669

0.00983

0.33465

0.029383

22.59%

18

mm

0.709

0.01240

0.35433

0.035006

46.05%

Retrofitting Brand Z Oar Towers

Brand N, Brand Z…Whatever.  Purchase 17mm drill and Drill / Ream new bearing  journal.  While you’re at it, install a grease zirk, see McMaster Carr for thread size options.  Worried about tolerances?  The S folks can even hold 30 thousands, let alone bearing tolerances.





Note: By choosing the optimal angle of incidence, you eliminate the need for expensive elliptical oarlocks.
In fact, concept of elliptic oarlocks was born from inadequate forethought and design.
 
 
Re: Top Frame
 
Oar Towers for Short and Intermediate Heights
These fittings accommodate the 1 1/2 Nominal Pipe Size (1.9" o.d.) Default
Towers are adjustable to any angle of incidence
 
Price: $130 per set of 2 with oarlocks assembled with retainer hardware
 
 
 
 
 
 
 
 
 
 
 
 
 
Re: Intermediate Frame PN MT8x8 Best Value and Performance
 
Mitered Towers to Eliminate Counter-Balancing
These fittings accommodate the 1 1/2 Nominal Pipe Size (1.9" o.d.) Default
Towers are adjustable from 16 to 28 degrees angle of incidence (22 deg normally optimal)
 
Price: $140 per set of 2 with oarlocks assedmbled with retainer hardware
 
Also Available in a 12" out and 8" up Mitered Tower (MT12x8)  <
Also avainable in a 6" out and 6" up Mitered Tower (MT6x6)
Also available in a 8" out and a 10" up Mitered Tower (MT8x10)
 
 
 
 
 
 
 
 
 
 
Re: Bottom Frame
 
Complete Set of 2 with Oarlocks $120
Includes Springs, Washers, Split Ring Mounted
We make these for 1.5" pipe (1.9" o.d.) Default
 
Note: These towers accommodate a 16 to 24 deg outward lean angle
 
 
 

Oar Stands
Offset Oar Towers MT8x8
 
Oar Stands
Mitered Oar Towers 8x8
Long Reach Oar Stands
Oar Towers for Mini Me Clones
MT 8x12 Oar Rowers
 
Use these towers for MiniMe Rafts, Clones, Inflatable Canoes and Narrow Width RowFrames.
 
Re: Intermediate Frame PN MT8x12 For Extended Oar Mounts
 
Mitered Towers 12x8 to Eliminate Counter-Balancing
These fittings accommodate the 1 1/2 Nominal Pipe Size (1.9" o.d.) Default
To accommodate the 1 1/4" size (1.66" o.d.), advise
Towers are adjustable from 16 to 28 degrees angle of incidence (22 deg normally optimal)
 
Price: $130 per set of 2 with oarlocks assembled with retainer hardware
 
 

MiniMe Oar Towers
MT8x12 Oar Tower on PadCat
Low Oar Tower
Oar Tower MT6x6
MT6x6 Tower.  6" to center of Fulcrum; 6" out from center of longitudinal stringers

Stand_Up Oar Stands
Stand-n-Row Oar Towers
Silicon Bronze OR Locks
Oar Lock Mount Type A
fishing oarlock half inch
Oar_Bushing for 1/2" oarlock MMC# 6338K421 2 per
Yeah, We Make That....Better and We Make It In The USA
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