MAKISHINKO JB, JBH and JTB Ball Screw Jacks — Standard, High-Lead and Traveling Nut Models

MAKISHINKO uses ball screw designs for applications that benefit from higher transmission efficiency and frequent movement. JB provides a standard translating screw, JBH adds high lead for faster travel, and JTB provides a traveling nut layout. Specify a brake or other suitable load-holding arrangement for the ball screw application.

JB standard ball screw jack

JB standard ball screw jack

The standard JB series has 15 listed sizes from JB005 through JB1250. The design integrates the ball nut with the worm wheel. On JB005 and JB010 the reduction stage is grease lubricated, and the larger JB025 through JB1250 group uses oil-bath reducer lubrication. Check permissible operating load at the selected H or L ratio and input speed.

Model	Nominal capacity (kN)	Screw diameter (mm)	Screw root diameter (mm)	Screw pitch (mm)	H reduction ratio	L reduction ratio	H travel (mm/input rev)	L travel (mm/input rev)	H efficiency at 30 rpm (%)	H efficiency at 1,800 rpm (%)	L efficiency at 30 rpm (%)	L efficiency at 1,800 rpm (%)	Maximum input speed (rpm)	Screw torque (N·m)	No-load input torque (N·m)	H starting input torque (N·m)	L starting input torque (N·m)	H holding torque (N·m)	L holding torque (N·m)	Reverse load (kN)	Static load (kN)	Mass (kg)
JB005	5	16	13.5	5	6	18	0.83	0.28	58	71	39	57	1800	5	0.15	1.4	0.8	0.4	0.1	5	8	3.1
JB010	10	20	17.5	5	6	18	0.83	0.28	59	72	40	59	1800	10	0.2	2.7	1.5	0.7	0.2	10	15	4.6
JB025	25	25	20	10	7.67	23	1.30	0.44	57	71	37	58	1800	45	0.5	10.6	6.2	2.4	1.1	25	30	11
JB050	50	32	27	10	7.67	23	1.30	0.44	57	72	36	58	1800	90	0.8	21.5	12.6	4.4	2.5	50	60	20
JB075	75	40	35	10	7.67	23	1.30	0.44	56	72	35	59	1800	140	1.2	32.5	19.2	6.3	4.1	75	80	33
JB100	100	45	38	12	7.67	23	1.56	0.52	59	73	39	62	1800	220	1.8	49.2	27.9	12.3	4.2	100	140	54
JB150	150	50	42	16	7.67	23	2.09	0.70	58	74	38	63	1800	425	2.5	98.2	55.7	23.8	9.3	150	170	65
JB200	200	63	55	16	7.67	23	2.09	0.70	58	74	38	63	1800	575	2.5	130.2	73.4	31.7	12.4	200	250	80
JB250	250	63	55	16	8	24	2.00	0.67	59	74	39	63	1800	720	3.2	153.3	85.1	40.4	12.4	200	300	90
JB300	300	80	72	20	9.33	28	2.14	0.71	59	74	39	63	1800	1080	4.0	197.1	109.6	51.8	16.1	200	400	120
JB400	400	90	82	20	10	30	2.00	0.67	52	66	33	56	1800	1460	5.0	280.3	160.1	58.0	26.8	250	500	150
JB500	500	100	90	20	10	30	2.00	0.67	61	75	40	64	1800	1855	6.0	294.0	166.2	90.7	21.9	300	700	200
JB750	750	110	97	25	9.67	29	2.59	0.86	61	75	43	66	1200	3415	7.0	564.6	294.3	176.0	23.7	400	900	500
JB1000	1000	125	109	32	9.67	29	3.31	1.10	62	75	44	67	900	5745	8.0	939.9	478.2	316.1	24.1	500	1200	600
JB1250	1250	140	121	32	10.33	31	3.10	1.03	63	75	45	67	900	7275	10	1086.7	546.9	379.8	17.7	700	1500	700

JBH high-lead ball screw jack

JBH high-lead ball screw jack

The high-lead screw increases travel per input revolution. For example, the JBH050 H configuration is listed at 4.69 mm per input revolution, while the L configuration is listed at 1.57 mm per revolution. Use the full load and speed information to select the drive. The table retains blank source entries as dashes.

Model	Nominal capacity (kN)	Screw diameter (mm)	Screw root diameter (mm)	Screw lead (mm)	H ratio	L ratio	H travel (mm/input rev)	L travel (mm/input rev)	H efficiency at 30 rpm (%)	H efficiency at 1,800 rpm (%)	L efficiency at 30 rpm (%)	L efficiency at 1,800 rpm (%)	Maximum input speed (rpm)	Screw torque (N·m)	No-load input torque (N·m)	H starting input torque (N·m)	L starting input torque (N·m)	H holding torque (N·m)	L holding torque (N·m)	Reverse load (kN)	Static load (kN)	Mass (kg)
JBH005	5	16	13.6	16	6	—	2.67	—	58	71	—	—	1800	13.2	0.15	1.9	—	1.1	—	5	8	2.5
JBH010	10	20	17.3	20	6	—	3.33	—	59	72	—	—	1800	33	0.2	4.8	—	2.9	—	10	15	3.5
JBH025	25	25	21	25	7.67	23	3.26	1.09	57	71	37	58	1800	103	0.5	25.9	14.7	5.9	2.7	25	25	20
JBH050	50	36	31	36	7.67	23	4.69	1.57	57	72	36	58	1800	297	0.8	75.3	43.3	15.8	9.0	50	50	25
JBH075	75	40	34	32	7.67	23	4.17	1.39	56	72	35	59	1800	399	1.2	101.5	58.9	20.2	13.0	75	80	35
JBH100	100	45	38	32	7.67	23	4.17	1.39	59	73	39	62	1800	534	1.8	128.1	71.3	32.9	11.2	100	140	55
JBH150	150	50	42	32	7.67	23	4.17	1.39	58	74	38	63	1800	805	2.5	194.0	108.9	47.6	18.6	150	170	65
JBH200	200	63	55	32	7.67	23	4.17	1.39	58	74	38	63	1800	1086	2.5	257.8	144.3	63.5	24.9	200	250	80

JTB ball screw traveling nut jack

JTB ball screw traveling nut jack

In JTB the ball nut travels along a rotating screw. This reduces axial installation space on the housing side and requires the installation to restrain the traveling assembly against rotation. The detailed basic specification lists eight models from JTB005 to JTB200. Use the JTB screw dimensions and holding torque values when selecting a traveling nut configuration.

Model	Nominal capacity (kN)	Screw diameter (mm)	Screw root diameter (mm)	Screw pitch (mm)	H reduction ratio	L reduction ratio	H travel (mm/input rev)	L travel (mm/input rev)	H efficiency at 30 rpm (%)	H efficiency at 1,800 rpm (%)	L efficiency at 30 rpm (%)	L efficiency at 1,800 rpm (%)	Maximum input speed (rpm)	Screw torque (N·m)	No-load input torque (N·m)	H starting input torque (N·m)	L starting input torque (N·m)	H holding torque (N·m)	L holding torque (N·m)	Reverse load (kN)	Static load (kN)	Mass (kg)
JTB005	5	20	17.5	5	6	18	0.83	0.28	58	71	39	57	1800	5	0.15	1.4	0.8	0.4	0.1	5	8	2.5
JTB010	10	25	22	5	6	18	0.83	0.28	59	72	40	59	1800	10	0.2	2.7	1.5	0.7	0.2	10	15	3.5
JTB025	25	25	19	10	7.67	23	1.30	0.44	57	71	37	58	1800	45	0.5	10.6	6.2	2.4	1.1	25	30	20
JTB050	50	36	30	10	7.67	23	1.30	0.44	57	72	36	58	1800	90	0.8	21.5	12.6	4.4	2.5	50	60	25
JTB075	75	40	35	10	7.67	23	1.30	0.44	56	72	35	59	1800	140	1.2	32.5	19.2	6.3	4.1	75	80	35
JTB100	100	50	45	10	7.67	23	1.30	0.44	59	73	39	62	1800	190	1.8	41.3	23.5	10.3	3.5	100	140	55
JTB150	150	50	42	16	7.67	23	2.09	0.70	58	74	38	62	1800	425	2.5	98.2	55.7	23.8	9.3	150	170	65
JTB200	200	63	55	16	7.67	23	2.09	0.70	58	74	38	62	1800	575	2.5	130.2	73.4	31.7	12.4	200	250	80

Information for selection and ordering

Specify the push and pull loads, working stroke, motion profile, starts per hour and load distribution. Check compression buckling, ball screw life, input starting torque, and the load and speed combination for the exact model. Standard catalog stroke increments are 50 mm up to 500 mm and 100 mm above 500 mm up to 1,000 mm. Confirm the required end attachment and load-holding device before ordering.