Pin Bush Couplings Type - RB

Octaforce Pin Bush couplings consist of a set of resilient BARREL shaped bushes with pins & nuts and two flanged hubs of graded cast iron.

These special BARREL shaped bushes permit the MISALIGNMENT IN ALL DIRECTIONS and give extra torsional flexibility as compared to plain bushes. These couplings are suitable for general engineering application requiring reliable power transmission even under conditions of shaft misalignments which are often unavoidable.

FEATURES

SIMPLICITY OF CONSTRUCTIONS

Easy to assemble & disassemble. Suitable for independent running of the drive.

SIMPLE/EASY MAINTENANCE

No complicated mechanism to demand adjustment or maintenance. Inspection and replacement of bushes is easy and bushes can be quickly fitted without dismantling or moving either of coupled shafts.

VARYING STIFFNESS CHARACTERISTICS

Special barrel shaped bushes provide progressively increasing stiffness characteristics, hence ensure effective shocks & vibration absorption.

LOW OPERATIONAL COST

Only wearing part is low cost bushes which make coupling economical in long run.

NO LUBRICTION

B-FLEX couplings never require lubrication of any kind.

SMOOTH & QUIET OPERATION

Reduces vibration & noise arising from severe torque fluctuations.

TECHNICAL DATA
Coupling Size Lovejoy Size Flender Size Coupling Rating @100RPM Max. Speed
rpm		 Min. Bore Max. Bore A B1 B2 G L TL Wt. in kg. M.I. (WR2) in kgm2 Max. Misalignment
Synthetic Rubber Polyurathane HTrans OD1 OD2 Axial
(mm)		 Radial
(mm)		 Angular
KW at 100 RPM Torque Nm KW at 100 RPM Torque Nm KW at 100 RPM Torque Nm
OPB-105-3 RB-105-3 RWN-105-3 1.0 95 1.5 143 2.5 239 7200 11 30 32 105 48 50 2-6 45 94 2 0.0030 2 0.3 1°
OPB-116-4 RB-116-4 RWN-116-4 1.5 143 2.3 215 3.8 358 6100 12 39 42 116 60 68 2-6 45 94 2.6 0.0050 2 0.3 1°
OPB-125-4 RB-125-4 RWN-125-4 1.7 162 2.6 244 4.3 406 5500 14 45 50 125 68 78 2-6 50 104 3.1 0.0070 2 0.4 1°
OPB-144-6 RB-144-6 RWN-144-6 3.3 315 5.0 473 8.3 788 4900 18 50 60 144 82 91 2-6 55 114 4.3 0.012 2 0.4 1°
OPB-162-6 RB-162-6 RWN-162-6 5.5 525 8.3 788 14 1313 4500 22 60 65 162 89 100 2-6 60 124 7.5 0.030 2 0.4 1°
OPB-178-6 RB-178-6 RWN-178-6 6.7 640 10 960 17 1600 3800 24 70 75 178 105 115 2-6 70 144 10 0.040 2 0.5 1°
OPB-198-10 RB-198-10 RWN-198-10 13 1241 20 1862 33 3104 3400 28 80 90 198 124 135 2-6 80 164 13 0.062 2 0.5 1°
OPB-228-11 RB-228-11 RWN-228-11 21 2005 32 3008 53 5013 3000 28 90 100 228 133 146 4-10 90 187 18 0.100 3 0.6 1°
OPB-252-12 RB-252-12 RWN-252-12 32 3056 48 4584 80 7639 2700 38 105 115 252 156 167 4-10 100 207 24 0.17 3 0.6 1°
OPB-285-11 RB-285-11 RWN-285-11 48 4584 78 6875 120 11459 2400 48 115 125 285 170 186 4-10 110 227 35 0.31 3 0.7 1°
OPB-320-12 RB-320-12 RWN-320-12 64 6112 96 9167 160 15279 2100 55 125 135 320 196 212 4-10 125 257 51 0.53 3 0.7 1°
OPB-360-11 RB-360-11 RWN-360-11 93 8881 140 13321 233 22202 1900 65 135 150 360 212 232 4-12 140 288 73 1.02 4 0.9 1°
OPB-400-10 RB-400-10 RWN-400-10 126 12032 189 18048 315 30080 1700 75 160 410 230 4-12 160 328 101 1.70 4 1.1 1°
OPB-450-12 RB-450-12 RWN-450-12 195 18621 293 27932 488 46553 1500 85 180 450 260 4-12 180 368 137 2.90 4 1.1 0.5°
OPB-500-14 RB-500-14 RWN-500-14 270 25783 405 38675 675 64458 1350 95 200 500 290 4-12 200 408 180 4.70 4 1.1 0.4°
OPB-560-10 RB-560-10 RWN-560-10 325 31035 488 46553 813 77588 1200 95 225 560 320 4-8 220 446 278 10.70 2 1.5 0.3°
OPB-630-12 RB-630-12 RWN-630-12 440 42017 660 63025 1100 105042 1050 100 250 630 355 4-8 240 486 365 17.4 2 1.5 0.3°
OPB-710-12 RB-710-12 RWN-710-12 785 74962 1178 112443 1963 187405 950 100 260 710 385 5-9 260 527 516 33 2 1.8 0.3°
OPB-800-14 RB-800-14 RWN-800-14 1047 99981 1571 149972 2618 249953 850 100 280 800 420 5-9 290 587 691 53 2 1.8 0.3°
OPB-900-16 RB-900-16 RWN-900-16 1623 154985 2435 232478 4058 387463 750 100 305 900 465 5-9 320 647 927 86 2 1.8 0.3°
OPB-1000-18 RB-1000-18 RWN-1000-18 2042 194997 3063 292495 5105 487492 680 125 320 1000 515 5-10 350 708 1224 142.8 2 2.0 0.1°

 

  • PH- Pin Half (Drive) upto size 360
  • BH- Bush Half (Driven) upto size 360
Spar Parts
Coupling Size Lovejoy Size Flender Size Pin Half Part No. Bush Half Part No. Pin + Washer Part No. Bush Part No. No. of Pin/Bush
Assy./Coupling		 Nut Size
OPB-105-3 RB-105-3 RWN-105-3 RB-105-3/1 RB-105-3/2 RB/P-2 RB/B-2 3 M8
OPB-116-4 RB-116-4 RWN-116-4 RB-116-4/1 RB-116-4/2 RB/P-2 RB/B-2 4 M8
OPB-125-4 RB-125-4 RWN-125-4 RB-125-4/1 RB-125-4/2 RB/P-2 RB/B-2 4 M8
OPB-144-6 RB-144-6 RWN-144-6 RB-144-6/1 RB-144-6/2 RB/P-2 RB/B-2 6 M8
OPB-162-6 RB-162-6 RWN-162-6 RB-162-6/1 RB-162-6/2 RB/P-3 RB/B-3 6 M10
OPB-178-6 RB-178-6 RWN-178-6 RB-178-6/1 RB-178-6/2 RB/P-3 RB/B-3 6 M10
OPB-198-10 RB-198-10 RWN-198-10 RB-198-10/1 RB-198-10/2 RB/P-3 RB/B-3 10 M10
OPB-228-11 RB-228-11 RWN-228-11 RB-228-11/1 RB-228-11/2 RB/P-4 RB/B-4 11 M14
OPB-252-12 RB-252-12 RWN-252-12 RB-252-12/1 RB-252-12/2 RB/P-4 RB/B-4 12 M14
OPB-258-11 RB-258-11 RWN-258-11 RB-258-11/1 RB-258-11/2 RB/P-5 RB/B-5 11 M16
OPB-320-12 RB-320-12 RWN-320-12 RB-320-12/1 RB-320-12/2 RB/P-5 RB/B-5 12 M16
OPB-360-11 RB-360-11 RWN-360-11 RB-360-11/1 RB-360-11/2 RB/P-6 RB/B-6 11 M20
OPB-400-10 RB-400-10 RWN-400-10 RB-400-10 RB/P-7 RB/B-7 10 M20
OPB-450-12 RB-450-12 RWN-450-12 RB-450-12 RB/P-7 RB/B-7 12 M20
OPB-500-14 RB-500-14 RWN-500-14 RB-500-14 RB/P-7 RB/B-7 14 M20
OPB-560-10 RB-560-10 RWN-560-10 RB-560-10 RB/P-8 RB/B-8 10 M36
OPB-630-12 RB-630-12 RWN-630-12 RB-630-12 RB/P-8 RB/B-8 12 M36
OPB-710-12 RB-710-12 RWN-710-12 RB-710-12 RB/P-9 RB/B-9 12 M42
OPB-800-14 RB-800-14 RWN-800-14 RB-800-14 RB/P-9 RB/B-9 14 M42
OPB-900-16 RB-900-16 RWN-900-16 RB-900-16 RB/P-9 RB/B-9 16 M42

 

NOTES –

All dimensions are in mm. Unless otherwise specified.
Weight & inertia figures are at maximum bores.
Each coupling is capable of withstanding maximum torque of 3 times of nominal torque for short durations such as during start up.
For vertical installation contact OCTAFORCE.