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NL typeDrum gear couplingIt is used for rotation transmission between shafts, allowing a full set of shafts and radial displacement. The internal gear type elastic coupling produced by our factory has reasonable design, simple structure, easy disassembly and assembly, convenient operation, simple maintenance, long life, and noise It has many advantages such as low cost, low transmission power loss and so on. 

弹性联轴器轴孔型式有圆柱型(Y)和短圆柱型(J).联轴器键槽按标准GB3852-83(联轴器轴孔和键槽型式尺寸)的规定加工。该内齿型联轴器工作温度-20°—70°C。联轴器材料采用铸铁HT20—40铸造和增强注塑尼龙(尼龙66)等,经特殊工业处理。本厂生产的十个系列内齿形弹性联轴器广泛用于锻压、建筑、矿山、塑料、食品、工程、石油、化工、机床、船舶、皮革、纺织、风机、水泵等行业机械的传动。该内齿型弹性联轴器使用效果明显优于其他结构的联轴器。

modelNominal torque Tn (NM)Allowable speed n (r/min)Main size (mm)Size deviationInertia torque (KgC m 2)Weight (Kg)
Diameter of shaft hole 
d1 d2
Length of shaft hole
L 1 L 2
LDD1 D2EL3Axial (mm)Radial (mm)Angle α°
NL14060006 8 1016 20 25 3237 45 55 6940264342± 0.31 °0.250.85
12 14
NL2100600010 12 14 2225 32 42 5257 71 91 11142364402± 0.41 °0.921.7
16 18 20 24
NL3160600020 22 2452 62113 13366444462± 0.41 °3.102.6
25 28
NL4250600028 30 3262 82129 16983584482± 0.41 °8.693.6
35 38
NL5315500032 35 3882 112169 22993684503± 0.42 °14.285.5
40 42
NL6400500040 42 4582 112230100684523± 0.42 °18.346.8
48
NL7630360045 48 5082 112229115804603± 0.62 °56.59.8
55
NL81250360048 50 55112 142229 289140964723± 0.62 °98.5526.5
60 63 65
NL92000200060 63 65142 172295 3511751246934± 0.72 °370.537.6
70 71 75 80
NL103150180070 71 75 80142 172 212292 352 43222015781104± 0.72 °1156.855

Shandong NL type drum gear coupling Guangdong NL type drum gear coupling 
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Mobile phone:+86-571-88220653

telephone / fax:+86-571-88220651

Address: Shenhua Road, Hangzhou, Zhejiang, China.