DBZ-CDownload PDFCatalogue No.:UT-DBZ-C | Revision 00

Type DBZ-C couplings are spacer Type Couplings. The spool type spacer can be taken out to remove Pump seals and servicing without having to shift either of connected machines.The couplings are available with standard spacer lengths & can also be supplied with special spacer length.

General Assembly Drawing

DBZ, A & B Diagram

Dimensions and Standard Sizes

Size Rating HP/100 Max Bore Max Speed A Dia B G Dia Standard Spacers - C
  RPM MM RPM RPM MM MM MM
50 0.25 18 9000 51 22 25 100, 140, 180
62 0.42 20 8200 62 28 30 100, 140, 180
75 0.60 25 7000 68 29 37 100, 140, 180
101 1.20 29 7000 83 35 43 100, 140, 180
126 2.40 35 6500 98 41 52 100, 140, 180
163 3.50 50 6000 117 48 70 100, 140, 180, 250
201 5.30 55 5700 138 54 83 100, 140, 180, 250
226 11.00 65 5500 156 67 96 100, 140, 180, 250, 300
263 15.00 75 5000 181 76 113 140, 180, 250, 300, 350
301 22.30 90 4700 208 87 129 140, 180, 250, 300, 350
351 44.90 100 4400 241 103 148 140, 180, 250, 300, 350
401 57.00 112 4100 279 118 168 180, 250, 300, 350
451 75.00 125 3800 321 133 187 180, 250, 300, 350

Engineering Data

Size Weight Inertia
MR^2
Torsional
Stiffness
End Float
+ -
Max Parallel
Misalignment
Bolt Tightening Torque
  KG KG.CM^2 MNM/Rad MM MM NM
50 0.45 1.3 0.014 0.018 0.60 2.7
62 0.80 4.1 0.016 0.030 0.70 4
75 1.10 5.4 0.020 0.060 0.80 4
101 2.20 18.0 0.050 0.180 0.96 11
126 3.40 38.0 0.080 0.414 1.16 18
163 5.00 83.0 0.080 0.805 1.45 18
201 7.70 190.0 0.120 1.840 1.70 34
226 11.30 315.0 0.140 2.760 1.95 58
263 16.80 660.0 0.170 4.720 2.25 85
301 25.40 1290.0 0.220 7.940 2.60 130
351 42.20 2860.0 0.322 14.950 3.00 240
401 63.50 5800.0 0.480 29.900 3.50 270
451 90.70 10250.0 0.550 41.400 3.90 350
Multiply MR^2 Values by 4 to obtain GD^2 values. Weight & Inertia are at max bore with smallest standard spacer. For other spacers use weight & inertia change values to calculate actual figures. Maximum permissible angular misalignment is 1.0 deg for 1500 RPM and 0.5 deg for 3000 RPM at each disc Pack. Standard Construction has hubs , spacers of class2 forged steel IS2004 and Disc Packs of Stainless steel. For plated bolts reduce Tightening Torques by 20 % . Spacer Dimensions other than standard spacers can also be supplied.
Download PDFCatalogue No.:UT-DBZ-C | Revision 00