YEJMKJ Ratio 50:1 Planetary Gearbox for Nema 23 Stepper Motor 57-83mm Backlash 15 arcmin Input Shaft 21mm φ6.35mm Planetary Reducer for 57 Step Motor incl. 4 Screw 2 Plug 1 Key CNC 3D Printer Lathe
Today’s price is 13% below what it has typically cost over the last 12 months.
£72.21
Typical over 90 days £84.86
14% below typical
Price shown was last seen 3d ago. Amazon prices change frequently — check before buying.
Specification
| Brand | YEJMKJ |
| Condition | New |
| ASIN | B0FHHW2XCY |
How this price compares
A good price — it has rarely been cheaper.
Price now
£72.21
Typical over 12 months
£82.71
Typical over 90 days
£84.86
Against the 12-month typical
13% cheaper
It was cheaper than this for 17% of the last year.
“Typical” is a time-weighted median of the real price history — the price this product held for most of the period, not an average. We use the median because averages are distorted by short spikes. How we rank
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