AstroSystems Pivot Kit

PTFE Bearing Kits


3/8" Pivot Kit 1/2" Pivot Kit Pivot Installation


Easy Installation

Improves Telescope Motion

Digital Setting Circle / Drive Ready

This is one of the key components in making a Dobsonian move smoothly and easily in azimuth, even when pointed near the zenith.  The square PTFE center pad is shimmed to take part of the load off the azimuth pads, giving the telescope excellent azimuth movement.  The pivot bolt is pre-drilled with lock screw for digital setting circle encoder.

3/8" Pivot Kit

Each kit contains a 3/8" x 2.25" brass bolt, bronze thrust bushing, stainless steel locknut assembly and full instructions.  The supplied bolt length is configured for a nominal rocker box bottom thickness of 3/4" and a ground board thickness of 3/4" and a PTFE bearing thickness of 3/16".  

1/2" Pivot Kit

The 1/2" bolt kit is recommended for 20" and larger telescopes.  Each kit contains a 1/2" x 2.5" brass bolt, bronze thrust bushing, stainless steel locknut assembly and full instructions.  The supplied bolt length is configured for a nominal rocker box bottom thickness of 3/4" and a ground board thickness of 3/4" and a PTFE bearing thickness of 3/16".  

 

3/8" Bolt $29.00,   ShipWeight 1 lb. (Optional bolt lengths in 3/8" are 1.5". 1.75", 2", 3" and 3.5".  Add $5 for the 3" and 3.5" length.)

1/2" Bolt $38.00,   ShipWeight 1 lb. ( Optional bolt lengths in 1/2"  are 2.75" and 3.5".  Add $5 for the 2.75" and 3.5" length.)

Call for custom lengths

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AstroSystems PTFE Bearing Kits

AstroSystems PTFE Bearing Kits

Smooth out your telescope movement with virgin PTFE bearings.  All kits contain 3 azimuth and 4 altitude bearing pads of 3/16" minimum thickness virgin PTFE, pre-drilled and countersunk, with stainless steel mounting screws.  These suggested sizes will accommodate most telescopes, call for custom sizes or thickness.

  Telescope Weight Azimuth Pads(3) Altitude Pads(4) ShipWeight Price
Small-kit up to 70 lbs.  1" x 1"  0.75" x 1" 1 lb. $25.00
Medium-Kit    71-120 lbs.  1.5" x 1.5"   1" x 1.5" 1 lb. $29.00
Large-Kit 120-250 lbs.  2.5" x 2.5"   1.5" x 2" 2 lbs. $39.00

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