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PF20NM NEMA 17

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PF20NM Type : Slim-fit Nema 17 flanged input 6mm bore output 1.25Nm-5Nm ratios 5:1 to 120:1

PF20NM Nema 17 flanged input Low Backlash 'Slim-fit' Worm Gear Reducers Section Dimension Drawings

Discounts

1+ 0%

6+ 5%

20+ 10%

50+ 15%

100+ 20%

Part Number		Ratio	Efficiency at 1000 Rpm	Reflected Inertia at Input (kg.m²)	Self Locking Output	Standard			Low Backlash
Standard =30'	Low Backlash =8'	Ratio	Efficiency at 1000 Rpm	Reflected Inertia at Input (kg.m²)	Self Locking Output	Cost	Quantity	Add to Basket	Cost	Quantity	Add to Basket
PF20-10NM	PF20-10ANM	10:1	86%	2.53 x 10^-7	No	£142.89			£237.54
PF20-12NM	PF20-12ANM	12:1	85%	2.43 x 10^-7	No	£142.89			£237.54
PF20-15NM	PF20-15ANM	15:1	84%	2.35 x 10^-7	No	£142.89			£237.54
PF20-20NM	PF20-20ANM	20:1	78%	2.28 x 10^-7	No	£142.89			£237.54
PF20-30NM	PF20-30ANM	30:1	71%	2.24 x 10^-7	No	£142.89			£237.54
PF20-60NM	PF20-60ANM	60:1	60%	2.21 x 10^-7	Yes	£142.89			£237.54
PF20-120NM	PF20-120ANM	120:1	32%	2.00 x 10^-7	Yes	£142.89			£237.54
PF20-SPNM	PF20-SPANM	5:1-120:1	Special Ratios Replace SP with Ratio Required			£177.22			£237.54

Extras	Cost	Quantity	Add to Basket
Output Shaft - Single	£14.08
Output Shaft - Double	£18.51
Output Key	£0.88

Material
Case: 'Slim-fit' AA15 Red Anodised Aluminum (6082-T6)
Worm: High Carbon Steel 817M40 (40CrNiMo6)
Wheel: Quality Aluminium Bronze (CA104 / AB2)
Threaded Bearing Caps: Mild Steel, chemically blackened (Blackodised)
Fasteners: Steel (non-plated)
Bearings: Steel

Nm output torque:

Ratio	10:1	12:1	15:1	20:1	30:1	60:1	120:1
Rpm Input
3000	1.40	1.50	1.60	1.70	1.90	2.10	1.25
2000	1.70	1.70	1.80	1.80	2.10	2.40	1.42
1000	2.10	2.30	2.30	2.50	2.70	2.90	1.70
500	2.70	2.70	2.80	2.90	3.20	3.50	1.94
200	3.40	3.50	3.50	3.70	3.90	4.10	2.27
100	3.90	3.90	4.10	4.20	4.30	4.50	2.55
50	4.40	4.50	4.50	4.60	4.70	4.80	2.72
10	4.80	4.80	4.90	4.90	5.00	5.00	2.72

Tapped holes on input flange are not relative in position to the gearbox body and will alter from box to box. However, we can machine the tapped holes after assembly so they are relative in position to the gearbox body. This will affect delivery.
Motor Inputs also available - contact Sales.

Performance
Weight: 0.23kg. Greased for life: Shell Gadus S5 V42P 2.5
Self Locking Output: Subject to ratio and only applies in static condition.
Amount of locking effect may vary due to manufacturing processes.
Max. Overhung and Thrust Loads at 1000rpm:
Output Overhung Load (F_xa) = 12kg.
Output Thrust Load (F_a) = 5kg.
Testing in your applications is necessary.
You will need to assess duty cycles and confirm gearbox suitability
with your own calculations. All figures listed are for guidance only.

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