Worm Gear Sets A53

Worm Gear Set A53
Dimensional drawing Worm Gear Set A53

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 53 mm i Lead angle m Worm Worm gear T2 [Nm]
Bronze
CAD-Data z1 dm1 da1 z2 dm2 dA MF MÖ SÖ
A53U5 4.75:1 25°51′ 3.5 4 32.1 39.1 19 73.9 83 45 54 67.5
A53U7 6.67:1 19°17′ 3.5 3 31.8 38.8 20 74.2 84 67 81 101
A53U10 9.67:1 13°52′ 2.5 3 31.29 36.29 29 74.71 82 77 93 116
A53U14 13.5:1 10°23′ 2.75 2 30.5 36 27 75.5 84 80 96 120
A53U15 15:1 9°38′ 2.5 2 29.9 34.9 30 76.1 83 75 90 113
A53U21 21:1 6°17′ 3.5 1 32 39 21 74 83 94 113 141
A53U25 25:1 5°38′ 3 1 30.58 36.58 25 75.42 84 84 101 127
A53U28 28:1 3°59′ 2.5 1 36 41 28 70 77.5 87 104 130
A53U30 30:1 4°40′ 2.5 1 30.73 35.73 30 75.27 83 77 93 116
A53U38 38:1 3°51′ 2 1 29.78 33.78 38 76.21 83 68 81 102
A53U50 50:1 2°47′ 1.5 1 30.85 33.85 50 75.15 81 60 72 90
A53U60 60:1 2°19′ 1.25 1 30.9 33.4 60 75.1 80 55 66 82
A53U75 75:1 1°51′ 1 1 30.9 32.9 75 75.1 78 49 59 74

All worms and worm gears stocked right hand only.
Worm made of case hardened and ground steel (HV 620 – 700).
Worm gear made of CuZn37Mn3Al2PbSi-S40 or CuZn37Mn3Al2Si°. On request made of plastic or HGW 2083.

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.

Additional information

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Application examples

Worm Gear Sets overview

Worm Gear Sets