Worm Gear Sets A31

Worm Gear Set A31
Dimensional drawing Worm Gear Set A31
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]
Shop Bronze
CAD-Data z1 dm1 da1 z2 dm2 dA MF
A31Ü2* 2,5:1 45°15′ 1,25 10 17,6 20,1 25 44,4 46,9 4,4 5,3 6,6
A31Ü3* 3:1 35°10′ 1,15 10 19,97 22,27 30 42,03 44,5 4,5 5,4 6,7
A31Ü4 4,28:1 25°24′ 1,25 7 20,4 22,9 30 41,6 45 9 10,8 13,5
A31Ü5 5:1 23°46′ 1,3 6 19,35 21,95 30 42,65 46,5 9,5 11,4 14,2
A31Ü6 6:1 18°13′ 1,3 5 20,8 23,4 30 41,2 45 7,6 9,1 11,4
A31Ü7 7:1 20°32′ 1,5 4 17,1 20,1 28 44,9 48,8 9,7 11,6 14,5
A31Ü8 8,33:1 19°49′ 1,75 3 15,5 19 25 46,5 51 10 12 15
A31Ü10 10:1 12°50′ 1,4 3 18,9 21,7 30 43,1 47 9,5 11,4 14,2
A31Ü12 12:1 13°55′ 1,25 3 15,6 18,1 36 46,4 50 12,1 14,5 18,1
A31Ü15 15:1 10°40′ 1,5 2 16,2 19,2 30 45,8 50 10,7 12,8 16
A31Ü18 18:1 8°44′ 1,25 2 16,46 18,96 36 45,54 48,8 10,3 12,4 15,4
A31Ü20 20:1 7°49′ 0,75 3 16,54 18,04 60 45,46 48 8,3 10 12,4
A31Ü22 22:1 6°29′ 1 2 17,7 19,7 44 44,3 48 9,6 11,5 14,4
A31Ü23 23:1 7°29′ 2 1 15,35 19,35 23 46,65 52 10,5 12,6 15,7
A31Ü24 24:1 5°4′ 1,75 1 19,8 23,3 24 42,2 47 9,2 11 13,8
A31Ü25 25:1 5°35′ 1,75 1 18 21,5 25 44 48,5 9,6 11,5 14,4
A31Ü28 28:1 4°20′ 1,5 1 19,85 22,85 28 42,15 46,5 9,1 10,9 13,6
A31Ü30 30:1 5°7′ 1,5 1 16,8 19,8 30 45,2 48,8 10,3 12,4 15,4
A31Ü32 32:1 4°45′ 1,4 1 16,9 19,7 32 45,1 48,8 10,2 12,2 15,3
A31Ü38 38:1 5°1′ 1,25 1 14,3 16,8 38 47,7 51,2 11,6 13,7 17,1
A31Ü45 45:1 3°23′ 1 1 16,93 18,93 45 45,07 48 9,5 11,4 14,2
A31Ü50 50:1 3°3′ 0,9 1 16,9 18,7 50 45,1 48 9 10,8 13,5
A31Ü55 55:1 4°12′ 0,9 1 12,3 14,1 55 49,7 52 10,4 12,5 15,6
A31Ü60 60:1 2°33′ 0,75 1 16,9 18,4 60 45,1 48 8,2 9,8 12,3
A31Ü70 70:1 3°7′ 0,7 1 12,9 14,3 70 49,1 52 9 10,8 13,5
A31Ü75 75:1 2°2′ 0,6 1 16,9 18,1 75 45,1 47 7,3 8,8 10,9
A31Ü90 90:1 1°41′ 0,5 1 17 18 90 45 48 6,4 7,7 9,6
A31Ü100 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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Application examples

Worm Gear Sets overview

Worm Gear Sets