LLC Instrument
Our factory specializes, basically, on release of technical, clock and instrument stones. Such as pyroceram, corund foot bearings, ruby, ceramic bushings, and also corund nozzle and another.

Watch receiving pallet stone. 25-1895.0016-91

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Stones are fixed in the anchor arm and enter in turn with the same frequency as wheel into
the gearing of a step scape wheel in the watch mechanism with mechanical drive.
Material: Ruby-10


By the order of the consumer the pallets could be made with two radial lead-in chamfers, which are located on the crossing of the basis planes and quiescence with the end face plane, with radius of a chamfer equal 0,005-0,15.
As agreed with the consumer it is assumed the production of pallets with a rounding off the edge lateral side with the planes of the quiescence and the basis in the radius equal is supposed 0,005-0,020mm.

Stone
typesize
H mm mm L mm P degree
nominal Tolerance nominal Tolerance nominal Tolerance nominal Tolerance
2237 0,22 -0,006 0,37 -0,04 By
customer`s
order
-0,08 By
customer`s
order
30
2337 0,23 -0,006 0,37 -0,04 -0,08 30
2536 0,25 -0,006 0,36 -0,04 -0,08 30
2940 0,29 -0,006 0,40 -0,04 -0,08 30
3040 0,30 -0,006 0,40 -0,04 -0,08 30
3540 0,35 -0,006 0,40 -0,04 -0,08 30
3650 0,36 -0,006 0,50 -0,04 -0,08 30
3750 0,37 -0,006 0,50 -0,04 -0,08 30
4260 0,42 -0,006 0,60 -0,04 -0,08 30
4765 0,47 -0,006 0,65 -0,04 -0,08 30
4865 0,48 -0,006 0,65 -0,04 -0,08 30
5070 0,50 -0,006 0,70 -0,04 -0,08 30
6490 0,64 -0,006 0,90 -0,04 -0,08 30