Nippon Gear | Kouei Japan Trading

Manufacturer: Nippon Gear Co., Ltd.

Features

This type of jack does not have a self-locking function, so it is required to install a brake.
Capacity: 10kN~1000kN
The jack consists of a high-precision worm gear and a ball screw; and realizes high speed and high efficiency by using rolling friction.
We can also manufacture a jack with anti-rotation mechanism which prevents its lifting screw from drag turning.
Wide-ranging options are available, including dustproof bellows to protect the lifting screw, limit switch for control, and RC encoder.

Specifications

Series/Size Code		J0B	J1B	J2B	J3B	J4B	J5B	J6B	JFB	J7B
Capacity		10kN	25kN	50kN	100kN	200kN	300kN	500kN	750kN	1000kN
Lifting screw diameter		20mm	25mm	36mm	45mm	60mm	80mm	100mm	120mm	140mm
Lifting screw lead		5mm	8mm	10mm	12mm	16mm	20mm	24mm	28mm	32mm
Worm gear ratio	H	5	6	6	8	8	10 2/3	10 2/3	10 2/3	12 2/3
Worm gear ratio	L	24	24	24	24	24	32	32	38	36
Effciency	H	0.64	0.61	0.61	0.59	0.6	0.61	0.6	0.61	0.62
Effciency	L	0.36	0.38	0.35	0.43	0.44	0.41	0.39	0.39	0.38
Maximum allowable power per jack		0.75kW	1.3kW	2.5kW	3.7kW	6kW	9.5kW	14kW	17kW	22kW
Input shaft torque at no load (b)		0.3N・m	1N・m	2N・m	3N・m	5N・m	10N・m	20N・m	30N・m	40N・m
Torque coefficient (a)	H	0.25	0.35	0.43	0.4	0.53	0.49	0.6	0.68	0.65
Torque coefficient (a)	L	0.09	0.14	0.19	0.18	0.24	0.25	0.3	0.3	0.37
Required input torque at maximum load	H	2.8N・m	9.7N・m	24N・m	43N・m	111N・m	157N・m	319N・m	542N・m	685N・m
Required input torque at maximum load	L	1.2N・m	4.5N・m	12N・m	21N・m	53N・m	84N・m	172N・m	256N・m	412N・m
Required input torque at maximum load	H	1.5N・m	5N・m	13N・m	21N・m	56N・m	80N・m	160N・m	180N・m	370N・m
Required input torque at maximum load	L	0.18N・m	0.7N・m	1.5N・m	3.5N・m	10N・m	9N・m	14N・m	15N・m	21N・m
Worm rotation per 10mm of stroke	H	10	7.5	6	6.7	5	5.3	4.4	3.8	3.9
Worm rotation per 10mm of stroke	L	48	30	24	20	15	16	13.3	13.6	11.2
Speed coefficient (c) (screw lead per rotation of input shaft)	H	1.0mm	1.33mm	1.67mm	1.50mm	2mm	1.87mm	2.26mm	2.62mm	2.53mm
	L	0.21mm	0.33mm	0.42mm	0.5mm	0.67mm	0.63mm	0.75mm	0.74mm	0.89mm
Maximum allowable input rotation speed (over 1000min^-1 must be oil lubruicated)		1800min^-1	1800min^-1	1800min^-1	1800min^-1	1800min^-1	1800min^-1	1800min^-1	1800min^-1	1800min^-1
Anti-rotation key torque at maximum load		5N・m	15N・m	45N・m	115N・m	300N・m	600N・m	1250N・m	2250N・m	3500N・m
Input shaft allowable overhang load		300N	450N	700N	1200N	1200N	2200N	2500N	2500N	3000N
Amount of filled grease		0.15kg	0.35kg	0.8kg	1.5kg	2.3kg	4.5kg	6kg	12kg	15kg
Operating temperature range		-15〜80℃	-15〜80℃	-15〜80℃	-15〜80℃	-15〜100℃	-15〜100℃	-15〜100℃	-15〜100℃	-15〜100℃