TG Drives - BDB 250

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BDB 250 - Characteristics

No of stages		1 - stage		2 - stages				3 - stages
Ratio ⁽¹⁾		4	5,5	16	22	28	31	40	60	66	88	91	110	154	220

Input		1 - stage		2 - stages				3 - stages
Rated/Max. speed	min^-1	2000/3000 (higher speed - consult)
Rated torque	Nm	406	233	100	73	57	51	52	35	32	24	23	19	14	9
Accel. torque	Nm ⁽²⁾	521	303	133	97	76	69	82	55	50	37	36	30	21	15

Output		1 - stage		2 - stages				3 - stages
Rated speed	min^-1	500	363	125	90	71	64	50	33	30	22	21	18	12	9
Rated torque	Nm	1550	1230	1500				1900
Accel. torque	Nm ⁽²⁾	2000	1600	2000				3000

General data		1 - stage		2 - stages				3 - stages
Inertia	kgm² ×10^-5 ⁽³⁾	474	305	132	110	89	67	90	88	87	86	86	86	86	86
Max. backlash	arcmin.	3 (1 as low backlash option)
Efficiency	%⁽⁴⁾	96		94				91
Lifetime	hours	20000
Weight	kg	40		50				55
Torsional stiffness	Nm/rad ×10⁴	209	220	201	246	244	239	213
Radial load	N ⁽⁵⁾	25000
Axial load	N	13500

(1) Please enquire if a desired ratio is not shown.
(2) S5 duty service.
(3) On the motorside.
(4) Gear efficiency at rated load.
(5) Load applied in the middle of the output shaft at 300 rpm.