Pinions
Light duty pinions
A modest range of module 5, 6 and 8 (metric) and DP 4 pilot bore pinions in C45 steel to match the internally and externally geared light series slewing rings (metric and inch sizes) are available.
These are suitable for many light industrial applications.
Usually supplied in pilot bore form we can offer with fully machined bore, or in other tooth modules to order, and in high strength alloy steel and nitride hardened if necessary.
| QCB Reference | Module | Tooth # | Dimensions | |||||
|---|---|---|---|---|---|---|---|---|
| PCD | GFW | LTB | OD | Boss | Pilot Bore | |||
| mm | mm | mm | mm | mm | mm | |||
| M5 Z12 | 5 | 12 | 60 | 50 | 75 | 70 | 45 | 16 |
| M5 Z13 | 5 | 13 | 65 | 50 | 75 | 75 | 50 | 16 |
| M5 Z14 | 5 | 14 | 70 | 50 | 75 | 80 | 55 | 20 |
| M5 Z15 | 5 | 15 | 75 | 50 | 75 | 85 | 60 | 20 |
| M5 Z16 | 5 | 16 | 80 | 50 | 75 | 90 | 65 | 20 |
| M5 Z17 | 5 | 17 | 85 | 50 | 75 | 95 | 70 | 20 |
| M5 Z18 | 5 | 18 | 90 | 50 | 75 | 100 | 70 | 20 |
| M5 Z19 | 5 | 19 | 95 | 50 | 75 | 105 | 70 | 20 |
| M6 Z12 | 6 | 12 | 72 | 60 | 80 | 84 | 54 | 20 |
| M6 Z14 | 6 | 14 | 84 | 60 | 80 | 96 | 65 | 20 |
| M6 Z15 | 6 | 15 | 90 | 60 | 80 | 102 | 70 | 20 |
| M6 Z16 | 6 | 16 | 96 | 60 | 80 | 108 | 75 | 20 |
| M6 Z18 | 6 | 18 | 108 | 60 | 80 | 120 | 80 | 20 |
| M6 Z18 | 6 | 18 | 108 | 60 | 80 | 120 | 80 | 20 |
| M8 Z15 PB | 8 | 15 | 120 | 80 | 110 | 135 | 90 | 20 |
| QCB UK Ref | QCB US Ref | Dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DP | Tooth # | PCD | GFW | LTB | OD | Boss | Pilot Bore | Key | ||
| in | in | in | in | in | in | in | ||||
| DP4 Z14 PB | 39200001 | 4 | 14 | 3.50 | 2 | 2.88 | 3.90 | 2.88 | 1 | 1/4 |
| DP4 Z17 PB | 39200002 | 4 | 17 | 4.25 | 2 | 2.88 | 4.65 | 3.63 | 1 | 1/4 |
| DP3 Z14 PB | 39200003 | 3 | 14 | 4.667 | 2 | 2.88 | 5.20 | 3.88 | 1.25 | 5/16 |
| DP3 Z17 PB | 39200004 | 3 | 17 | 5.667 | 2 | 2.88 | 6.20 | 4.88 | 1.25 | 5/16 |
High torque / special design pinions
Heavy duty applications call for specially designed pinions.
All QCB slewing rings are manufactured in 42CrMo4 steel to offer higher tooth strength compared to some “economy” brands.
Tooth strength is a function of the module, the gear face width and the allowable root stress (which varies depending on section and material). Slewing ring tooth strength can be improved by adding an ‘addendum correction’ and it is vitally important that the pinion geometry is properly matched to achieve an optimum mesh and maximum gear efficiency.
With fixed centre systems it is also important to design in suitable backlash to avoid overpressure.
QCB uses state of the art software and it’s years of experience to ensure that our pinions offer exceptional service life in high torque applications.
Heavy duty pinions are manufactured in the UK using high strength alloy steel such as 42CrMo4 and can be induction hardened or nitrided to improve durability.
