Worm Gear Sets A31

Worm Gear Set A31
Dimensional drawing Worm Gear Set A31

mm to inch converter

Legende
i = gear ratio da1 = tip diameter (worm) T2 = output torque
γm = Lead angle z2 = No. of teeth MF = mineral grease
mn = module dm2 = pitch diameter (worm gear) MÖ = mineral oil / synthetic grease
z1 = number of threads dA = max. diameter (worm gear) SÖ = synthetic oil
dm1 = pitch diameter (worm)
Axial distance 31 mm i Lead angle m Worm Worm gear T2 [Nm]
Bronze
CAD-Data z1 dm1 da1 z2 dm2 dA MF
A31U2* 2.5:1 45°15′ 1.25 10 17.6 20.1 25 44.4 46.9 4.4 5.3 6.6
A31U3* 3:1 35°10′ 1.15 10 19.97 22.27 30 42.03 44.5 4.5 5.4 6.7
A31U4 4.28:1 25°24′ 1.25 7 20.4 22.9 30 41.6 45 9 10.8 13.5
A31U5 5:1 23°46′ 1.3 6 19.35 21.95 30 42.65 46.5 9.5 11.4 14.2
A31U6 6:1 18°13′ 1.3 5 20.8 23.4 30 41.2 45 7.6 9.1 11.4
A31U7 7:1 20°32′ 1.5 4 17.1 20.1 28 44.9 48.8 9.7 11.6 14.5
A31U8 8.33:1 19°49′ 1.75 3 15.5 19 25 46.5 51 10 12 15
A31U10 10:1 12°50′ 1.4 3 18.9 21.7 30 43.1 47 9.5 11.4 14.2
A31U12 12:1 13°55′ 1.25 3 15.6 18.1 36 46.4 50 12.1 14.5 18.1
A31U15 15:1 10°40′ 1.5 2 16.2 19.2 30 45.8 50 10.7 12.8 16
A31U18/1.25 18:1 8°44′ 1.25 2 16.46 18.96 36 45.54 48.8 10.3 12.4 15.4
A31U20/0.75 20:1 7°49′ 0.75 3 16.54 18.04 60 45.46 48 8.3 10 12.4
A31U20/1.15 20:1 8°33′ 1.15 2 15.47 17.77 40 46.53 50 10.3 12.4 15.4
A31U22 22:1 6°29′ 1 2 17.7 19.7 44 44.3 48 9.6 11.5 14.4
A31U23 23:1 7°29′ 2 1 15.35 19.35 23 46.65 52 10.5 12.6 15.7
A31U24 24:1 5°4′ 1.75 1 19.8 23.3 24 42.2 47 9.2 11 13.8
A31U25 25:1 5°35′ 1.75 1 18 21.5 25 44 48.5 9.6 11.5 14.4
A31U28 28:1 4°20′ 1.5 1 19.85 22.85 28 42.15 46.5 9.1 10.9 13.6
A31U30 30:1 5°7′ 1.5 1 16.8 19.8 30 45.2 48.8 10.3 12.4 15.4
A31U32 32:1 4°45′ 1.4 1 16.9 19.7 32 45.1 48.8 10.2 12.2 15.3
A31U38 38:1 5°1′ 1.25 1 14.3 16.8 38 47.7 51.2 11.6 13.7 17.1
A31U45 45:1 3°23′ 1 1 16.93 18.93 45 45.07 48 9.5 11.4 14.2
A31U50 50:1 3°3′ 0.9 1 16.9 18.7 50 45.1 48 9 10.8 13.5
A31U55 55:1 4°12′ 0.9 1 12.3 14.1 55 49.7 52 10.4 12.5 15.6
A31U60 60:1 2°33′ 0.75 1 16.9 18.4 60 45.1 48 8.2 9.8 12.3
A31U70 70:1 3°7′ 0.7 1 12.9 14.3 70 49.1 52 9 10.8 13.5
A31U75 75:1 2°2′ 0.6 1 16.9 18.1 75 45.1 47 7.3 8.8 10.9
A31U90 90:1 1°41′ 0.5 1 17 18 90 45 48 6.4 7.7 9.6
A31U100 100:1 2°24′ 0.5 1 11.96 12.96 100 50.04 52.7 7.4 8.9 11.1

* only available with a polished (smoothed) worm profile and helical-toothed gear

Steel, right-hand threaded worm, case hardened HV 620 – 700.
Worm gear made of CuZn37Mn3Al2PbSi or plastic or laminate 2083 upon request.

The output torque rating (T2) applies to the initial speed of 2800 rpm at the worm (shaft).
The efficiency values (see table in worm gear set catalog) are guidelines. The bearing, lubrication, speed, and installation, in addition to the lead angle, can influence efficiency.

Gears may be combined only with worms of the same axial distance and with the same transmission ratio.
Worms or worm gears from other manufacturers may not be paired with the counterpiece from Framo Morat. It is almost always necessary to adjust the toothing specifications.
All dimensions can be adapted upon request.

Is your desired gear set not available? Request your gear set!
Moderate quantities are usually available from stock, larger quantities are delivered in partial quantities or upon request.

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Worm Gear Sets overview

Worm Gear Sets