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Old 14-06-2010, 20:39   #1
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Source Needed for Metric-Sized Delrin Balls

My boat has a lot of Fredricksen blocks which use Delrin ball bearings.

They're sun damaged.

Although easily replaceable, I have been unable to find a source.

Ronstan acquired Fredricksen a few years ago, but everywhere I've checked I get the "Just replace the blocks".

There are several blocks on the boat, and they're otherwise perfectly serviceable.

The closest I've come is McMaster Carr, but they don't have metric sizes.

Any source would be much appreciated.
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Old 14-06-2010, 22:28   #2
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Steve,

Try Craig: 800.345.8210

They sell in big lots but still a lot cheaper than a single block! Good Luck.

Um Saudade
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Old 15-06-2010, 12:57   #3
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Location: Maitland, FL
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Quote:
Originally Posted by senormechanico View Post
My boat has a lot of Fredricksen blocks which use Delrin ball bearings.

They're sun damaged.

Although easily replaceable, I have been unable to find a source.

Ronstan acquired Fredricksen a few years ago, but everywhere I've checked I get the "Just replace the blocks".

There are several blocks on the boat, and they're otherwise perfectly serviceable.

The closest I've come is McMaster Carr, but they don't have metric sizes.

Any source would be much appreciated.

Mcmaster Carr does have some metric sizes, like these:
Part Number: 9614K74 $4.92 per Pack of 100
Material
Acetal
Acetal Material
Delrin
Backing
Plain Back
Finish
Smooth
Shape
Balls
Ball Type
Solid
Diameter
5 mm
Diameter Tolerance
.0254 mm
Opaque
White
Operating Temperature Range
Up to +185 F
Softening Point
Not Rated
Performance Characteristic
Electrical Insulator, Wash-Down Applications
Tensile Strength
Good
Impact Strength
Good
Tolerance
Standard
Grade
1
Hardness
Rockwell M: 89-94
Sphericity
.0127 mm
Specifications Met
Food and Drug Administration (FDA) Compliant, National Sanitation Foundation (NSF) Compliant, U.S. Department of Agriculture (USDA) Compliant




Look here for more sizes, etc: McMaster-Carr
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Old 15-06-2010, 14:37   #4
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FloridaWriter,
Thanks! I didn't see any metric the last time I looked at their site.
I just put in an order!
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