Ondrives: Gearboxes Reducers - Wormwheel Gearbox

PF20 20mm Centres 5Nm

Gearboxes Reducers » Wormwheel Gearbox »
PF20 Type : Slim-fit 6mm bore output 1.4Nm - 2.5Nm ratios 20mm ctrs 5:1 to 120:1

PF20 & PF20A Low Backlash Worm Gear Reducers Section Dimension Drawings

PF20 & PF20A Low Backlash 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

Red. Backlash

Standard
=30'

Models

Low Backlash
=8'

Models

Low Backlash
=4'

Cost

Quantity

Add to
Basket

Cost

Quantity

Add to
Basket

Cost

Quantity

Add to
Basket

PF20-10

PF20-10A

PF20-10AR

10:1

86%

2.03 x 10^-7

£142.89

£237.54

£285.05

PF20-12

PF20-12A

PF20-12AR

12:1

85%

1.93 x 10^-7

£142.89

£237.54

£285.05

PF20-15

PF20-15A

PF20-15AR

15:1

84%

1.85 x 10^-7

£142.89

£237.54

£285.05

PF20-20

PF20-20A

PF20-20AR

20:1

78%

1.78 x 10^-7

£142.89

£237.54

£285.05

PF20-30

PF20-30A

PF20-30AR

30:1

71%

1.74 x 10^-7

£142.89

£237.54

£285.05

PF20-60

PF20-60A

PF20-60AR

60:1

60%

1.71 x 10^-7

Yes

£142.89

£237.54

£285.05

PF20-120

PF20-120A

PF20-120AR

120:1

32%

1.50 x 10^-7

Yes

£142.89

£237.54

£285.05

PF20-SP

PF20-SPA

PF20-SPAR

5:1-120:1

Special Ratios
Replace SP with Ratio Required

£177.22

£237.54

£313.55

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.

Downloads
3DPartstream : Click to browse our full 3DPartStream catalogue or a part number (above) to download the 3Dmodel.
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