YEJMKJ Ratio 20:1 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 in line with what it has typically cost over the last 12 months.
£75.32
Typical over 90 days £86.77
13% below typical
Price shown was last seen 1d ago. Amazon prices change frequently — check before buying.
Specification
| Brand | YEJMKJ |
| Condition | New |
| ASIN | B0FHHWC8S5 |
How this price compares
A little below what it usually costs.
Price now
£75.32
Typical over 12 months
£75.97
Typical over 90 days
£86.77
Against the 12-month typical
1% cheaper
It was cheaper than this for 46% 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
Shopping for a 3D printer? Answer up to six quick questions and the printer finder recommends one from our reviews, at today’s prices.
We may earn a commission on purchases made through the Amazon link above, at no
extra cost to you. How this works