WP series worm gear reducers (single stage)

Classic single-stage worm gear reducers in a cast-iron housing: 13 sizes with centre distances from 40 to 250 mm and ratios from 5 to 100. Versions differ in the arrangement of input and output shafts, an optional motor flange and an optional hollow output shaft.

Sizes (centre distance): 40–250 mm (13 sizes)
Ratio: 5, 10, 15, 20, 25, 30, 40, 50, 60, 70, 80, 100 (K versions: 5–60)
Input power (i = 10–60, 1500 r/min): 0.12–33.2 kW
Output torque: 19–2745 N·m
Motor power (D versions): 0.12–15 kW
Input shaft diameter: 12–60 mm
Output shaft diameter (WPA): 14–90 mm
Efficiency: 77–90 % at i = 10; 60–71 % at i = 60
Input shaft speed: typically 600–1800 r/min, max. 2000 r/min
Weight (WPA): 4–360 kg
Lubrication: N220–N320 oil (−30 to 40 °C) or N320–N460 (40–65 °C); first change after 100 h, then every 2500 h
Max. oil temperature: 95 °C

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Features

13 sizes: centre distance 40, 50, 60, 70, 80, 100, 120, 135, 147, 155, 175, 200, 250 mm
Input shaft below (A) or above (S), output shaft upward (O) or downward (X); the universal W housing also allows T and V
D version with motor flange (gearmotor), motor power from 0.12 to 15 kW
K version with hollow output shaft for direct mounting on the driven shaft
Worms are right-hand as standard; left-hand thread available on special request
Ratings are given for 1500 r/min input speed and 8 h/day operation under steady load
AS, TV and OX base plates available as accessories

Designation

WPWEDKA50-80—600—B

W	Product name: worm speed reducer
P / D	Housing structure: P — one-piece, D — split
W / —	Housing model: W — universal, no code — basic
E / EE / —	Stages: E — double, EE — multi-stage, no code — single (basic)
D / —	Input connection: D — motor flange, no code — basic input shaft
K / —	Output shaft: K — hollow, no code — basic (solid)
A / S / O / X / T / V	Shaft arrangement: A — input shaft below, S — input shaft above, O — output shaft upward, X — output shaft downward, T — input shaft upward, V — input shaft downward; no code — universal
50-80	Centre distance (for double-stage units, the pair of stages)
600	Ratio
B	Shaft direction (diagram A–F for each type)

Versions

WPA	Input shaft below, solid output shaft
WPS	Input shaft above
WPO	Output shaft pointing upward (vertical)
WPX	Output shaft pointing downward (vertical)
WPDA / WPDS / WPDO / WPDX	The same arrangements with a motor flange
WPKA / WPKS / WPDKA / WPDKS	Hollow output shaft, with input shaft or motor flange
WPZ / WPDZ / WPKZ / WPDKZ	Z versions (vertical input shaft; WPDZ/WPDKZ with motor flange on top)
WPW… (WPWA, WPWS, WPWO, WPWX, WPWT, WPWV, WPWD…, WPWK…, WPWDK…)	Universal W housing with A, S, O, X, T, V shaft arrangements, with motor flange and/or hollow shaft
WD	Separate WD type (specified by gear module, i = 10–60) — see uncertain

Technical data

WP, WPK, WPW, WPWK (A, S, X, O, T, V): input shaft power, kW (input 1500 r/min)

Size	i = 10	i = 15	i = 20	i = 25	i = 30	i = 40	i = 50	i = 60
40	0.40	0.33	0.26	0.24	0.22	0.16	0.14	0.12
50	0.65	0.52	0.40	0.37	0.34	0.27	0.24	0.20
60	1.00	0.82	0.65	0.59	0.54	0.45	0.40	0.32
70	1.60	1.35	1.10	0.96	0.82	0.67	0.61	0.52
80	2.20	1.78	1.36	1.28	1.20	0.90	0.80	0.75
100	3.60	3.10	2.60	2.35	2.10	1.68	1.30	1.00
120	5.20	4.35	3.50	3.25	3.00	2.20	1.90	1.50
135	9.75	7.85	6.00	5.50	5.00	3.69	2.89	2.30
147	10.71	8.43	6.18	5.71	5.23	3.84	3.09	2.52
155	12.80	9.90	7.00	6.53	6.00	4.40	3.61	3.00
175	17.30	13.60	10.00	9.13	8.30	6.18	4.85	4.07
200	22.60	18.20	13.86	12.75	11.67	8.78	6.71	5.58
250	33.20	27.40	21.60	20.00	18.43	14.00	10.43	8.62

WP, WPK, WPW, WPWK (A, S, X, O, T, V): output shaft torque, N·m (input 1500 r/min)

Size	i = 10	i = 15	i = 20	i = 25	i = 30	i = 40	i = 50	i = 60
40	19	23	20	25	25	20	22	20
50	31	36	32	38	39	36	37	35
60	50	58	56	68	62	71	75	59
70	83	98	101	112	99	104	113	97
80	113	133	120	149	151	140	145	146
100	193	237	258	284	277	291	257	229
120	262	336	361	404	413	392	399	355
135	540	622	619	696	707	667	626	562
147	586	676	637	727	739	694	669	616
155	709	785	722	842	848	784	770	791
175	958	1091	1044	1221	1189	1133	1127	1078
200	1280	1477	1482	1643	1782	1654	1516	1449
250	1881	2266	2310	2579	2745	2674	2357	2371

WPD, WPDK, WPWD, WPWDK (motor flange): motor power and output torque (AO2 or Y series motors, 1500 r/min)

Size	Motor, kW (i = 10–30)	Motor, kW (i = 40–60)	T2, N·m, i = 10	i = 15	i = 20	i = 25	i = 30	i = 40	i = 50	i = 60
40	0.12	0.12	6	8	9	13	14	15	19	20
50			9	12	14	19	20	24	28	34
60	0.37	0.37	19	26	34	42	42	58	67	73
70	0.75	0.37	39	54	70	87	95	58	68	70
80	1.5	0.75	77	112	142	174	189	117	136	146
100	1.5	1.5	80	115	149	181	198	260	307	344
120	3	2.2	151	232	310	372	413	392	480	521
135	4	3	219	321	413	509	565	542	649	690
147	4	3	219	321	413	509	565	542	649	690
155	5.5	4	305	411	525	709	760	713	853	1039
175	7.5	5.5	415	602	783	1002	1074	1008	1278	1450
200	11	7.5	623	892	1176	1417	1680	1413	1695	1948
250	15	11	850	1246	1604	1933	2234	2101	2486	3025