YEJMKJ Ratio 20:1 Planetary Gearbox for Nema 34 Stepper Motor 90-133mm Backlash 15 arcmin Input Shaft 41.5mm φ19mm Planetary Reducer for 86 Step Motor incl. 4 Screw 2 Plug 1 Key CNC 3D Printer Lathe
£147.45
Price shown was last seen 6d ago. Amazon prices change frequently — check before buying.
Specification
| Brand | YEJMKJ |
| Condition | New |
| ASIN | B0FHHX56ML |
Recent price history
| Seen | Price | Condition |
|---|---|---|
| 24 Oct 2026, 14:50 | £147.45 | New |
| 14 Oct 2026, 22:50 | £148.23 | New |
| 12 Sep 2026, 06:20 | £145.62 | New |
How this price compares
A good price — it has rarely been cheaper.
Price now
£147.45
Typical over 12 months
£159.37
Typical over 90 days
£154.59
Against the 12-month typical
7% cheaper
It was cheaper than this for 16% 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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