Hollow cross-shaft universal coupling

Universal Coupling

KSWC-type hollow cross-shaft universal coupling adopts a hollow shaft structure design, suitable for heavy industrial transmission applications such as metallurgy rolling mills, featuring high torque, high reliability, and easy maintenance. The product is manufactured strictly in accordance with the NBR 8008 (ISO 1940) standard to ensure dynamic balancing accuracy.

Rated torque56 ~ 1000 kN·m

Flange diameter225 ~ 550 mm

Axial deflection angle8° / 15°

Total length1415 ~ 2625 mm

Weight range198 ~ 2495 kg

Standard specifications9 models

Product Features

Hollow shaft design, reduced weight
Rated torque 56 ~ 1000 kN·m
Axial deflection angle β = 8°/15°
Flange diameter 225 ~ 550 mm
Compliant with ISO 1940 dynamic balancing standard
High-strength alloy steel forging

Applications

Hot rolling mill drive system
Cold rolling mill main drive
Large press drive
Mine hoist
Heavy-duty crushing equipment

以下为 KSWC型的工程结构图，包含主要尺寸标注及端面视图。

结构形式

从动端

n=8

n=10

n=16

主动端

N=8

N=10

N=14

表4：KSWC型十字轴式万向联轴器基本参数和主要尺寸

数值 / 型号项目	KSWC 225	KSWC 250	KSWC 285	KSWC 315	KSWC 350	KSWC 390	KSWC 440	KSWC 490	KSWC 550
基本长度 L (mm)	945	1025	1145	1260	1469	1575	1760	1860	2055
总长度 Lt (mm)	1415	1475	1670	1765	1999	2070	2215	2375	2625
伸长量 La (mm)	650	650	750	750	800	800	800	900	1000
公称扭矩 Tn (kN·m)	56	80	120	160	225	320	500	700	1000
疲劳扭矩 Tf (kN·m)	28	40	58	80	110	160	250	350	725
轴线折角 β (°)	8/15	8/15	8/15	8/15	8/15	8/15	8/15	8/15	8/15
法兰直径 Df (mm)	225	250	285	315	350	390	440	490	550
回转直径 D (mm)	225	250	285	315	350	390	440	490	550
D1 (js11) (mm)	196	218	245	280	310	345	390	435	492
D2 (H7) (mm)	135	150	170	185	210	235	255	275	320
D3 (mm)	135	155	175	200	225	245	280	305	345
Lm (mm)	125	140	160	180	195	215	260	270	305
K (mm)	20	25	27	32	35	40	42	47	50
t (mm)	5	6	7	8	8	8	10	12	12
b (mm)	32	40	40	40	50	70	80	90	100
g (mm)	9	12.5	15	15	16	18	20	22.5	22.5
nxd (mm)	8×17	8×19	8×21	10×23	10×23	10×25	16×28	16×31	16×31
法兰直径 Df' (mm)	315	330	390	435	480	520	600	650	710
回转直径 D' (mm)	315	330	390	435	480	520	600	650	710
D1' (js11) (mm)	285	300	355	390	430	480	550	595	650
D2' (H7) (mm)	220	210	260	275	320	360	420	450	520
Lm' (mm)	140	155	175	190	210	235	265	290	325
K' (mm)	30	30	35	35	40	50	55	55	60
t' (mm)	5	6	7	8	8	12	12	12	15
Lg (mm)	420	450	505	575	640	685	755	800	880
Nxd (mm)	8×19	8X21	8X21	10X23	10X23	10X25	10X28	14X31	14X31
Do (mxz) (mm)	3×34	3×38	3×42	3×50	5×34	5×36	5×42	5×44	5×50
法兰螺柱规格	M16	M18	M20	M22	M22	M24	M27	M30	M30
法兰螺柱拧紧力矩 (kN·m)	0.2	0.28	0.39	0.53	0.53	0.69	1.01	1.4	1.4
转动惯量 (kg·m²)	1.165	1.77	3.639	6.318	10.08	16.79	32.76	51.85	88.74
质量 (kg)	198	272	409	553	772	973	1378	1732	2495

注：以上尺寸均为参考值，实际尺寸以工程图纸为准。如需其他规格，请联系我们定制。

Determine operating conditions
Clarify transmitted torque, speed, working environment, and installation space
Calculate load
Determine the calculated torque Tc = K·Tn based on the characteristics of the prime mover and driven machine
Select series
Select the appropriate series based on the connection type (flange/spline) and telescopic length
Confirm specifications
Refer to the parameter table and select the smallest model that satisfies Tc ≤ Tn
Check dynamic balancing
Verify according to ISO 1940 G6.3 grade; for high speeds, upgrade to G2.5

Notes

During installation, ensure the alignment error between the two shafts is within the allowable range.
Regularly check the lubrication status of the cross shaft bearings.
The working angle must not exceed the rated deflection angle.
In high-temperature environments, please use high-temperature resistant grease.

Common Applications

Hot strip rolling millHigh temperature, heavy impact225~1000 kN·m

Cold rolling finishing lineHigh precision56~320 kN·m

Wire rod rolling millHigh-speed continuous rolling56~500 kN·m

Heavy-duty pressImpact load320~1000 kN·m

Large mining millLow speed, high torque500~1000 kN·m