Altitude Bearings
Better
balance and motion for your telescope:
An
excellent example for improving balance is a tightrope walker using
long poles to spread weight over a wider area. Imagine standing with
your feet close together and being pushed from the side: very unstable.
Widening your stance greatly increases stability. Larger altitude bearings
provide that wide stance for your telescope. Larger bearings also provide
finer incremental movement as increased bearing circumference provides
more space between each degree, more room = more control. The difference
will make you a quick fan of larger bearings.
Customer
photos/comments
Pricing/Ordering
|
5" factory bearings. |
Bearing upgraded to 12". |
Upgrade your 5" bearings to 12".
Quickly and easily.
About
balance and motion
Pricing/Ordering
Photos: (L) small
factory 5" bearings, (R) upgrade attached externally.
Fit internal or external
to side walls depending on mount design.
Bolt holes customized
to your telescope.
Will these fit your mount side walls? Check
these dimensions.
All
parts included: 18mm Baltic birch bearings and supports with captures
(see 12" bearing unfinished below), laminate, Teflon, screws.
|
|
12" Bearing Internally Mounted.
|
12" Bearing (unfinished).
|
Standard 12"
and 18" bearings.
About
balance and motion
Pricing/Ordering
All
bearings use "3/4" inch Baltic birch plywood (18mm). Available
as kits or finished. Finish uses gloss polymer from General Finishes.
Choose among these options - advise what you need or ask us:
|
Carry handles are built in. |
18" bearing. |
What
you get: all parts included. Bearings, Teflon (with supports only),
laminate strips, fine tuning assembly (optional).
What you need: Kits require glue for laminate (contact cement), glued
with finished bearings, Torx (#8) and Phillips (#4) screwdriver, longer
tube attachment bolts (if necessary).
Choosing between 12" and 18" altitude bearings: Generally,
the shorter the tube, the smaller your bearings can be and maintain balance.
Larger tube diameters and/or heavier, the larger the bearing needed.
Several "rules of thumb" for bearing size exist, from 1.2 to 2.0
times the telescope's aperture. Size matters: Go bigger and have no regrets. |
Pricing/Ordering
|
|
| Type |
Description |
Price
|
| 5BUK |
Upgrade your 5" bearings to 12" Kit |
$65 |
| 5BUF |
Upgrade your 5" bearings to 12" Finished |
$111 |
| S12BK |
Standard
12" Bearings Kit |
$53 |
| S12BSK |
Standard
12" Bearings with Supports Kit |
$67 |
| S12BF |
Standard
12" Bearings Finished |
$87 |
| S12BSF |
Standard
12" Bearings with Supports Finished |
$105 |
| S18BK |
Standard
18" Bearings Kit |
$79 |
| S18BSK |
Standard
18" Bearings with Supports Kit |
$99 |
| S18BF |
Standard
18" Bearings Finished |
$121 |
| S18BSF |
Standard
18" Bearings with Supports Finished |
$147 |
| CSB |
Custom
Size Bearings: Request quote. |
|
|
.
|
