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10JS90/10JS90A/10JS90A-B QD40E
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Shanghai, China
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FAST 10JS90A-B Power Takeoff PTO
Model and Compatibility
Compatible transmissions: Fast 10JS90 / 10JS90A / 10JS90A-B (small 10-speed) series
Corresponding PTO model: QD40E (18-tooth single gear); also compatible with QD40D / QD40F and other models on the same platform
Meshing gear: Engages with the 30-tooth PTO gear on the transmission's countershaft to achieve power output
Structure and Installation
Installation position: Bottom or right-side access window of the transmission; square flange mounting hole pattern (the 8 bolt holes in the image are standard layout)
Core structure: Built-in 18-tooth drive gear that meshes with the countershaft gear of the transmission to transfer power
Output form: Side flange output, which can be directly connected to hydraulic pumps, generators, and other equipment
Performance Parameters
Rated torque: ~450 N·m
Gear ratio: 0.86 (for direct-drive version, matching the 10JS90A-B direct-drive transmission); 1.11 (for overdrive version)
Control method: Typically pneumatic, engaged/disengaged via a switch in the cab
Typical applications: Dump truck hoist pumps, sprinkler truck water pumps, mixer truck hydraulic systems, stage truck power generation, and other special-purpose vehicle equipment power takeoff.
Operation specifications: The PTO must only be engaged with the transmission in neutral and the vehicle stationary, with the engine running at idle or medium speed. Engaging the PTO while the vehicle is in gear and moving is strictly prohibited.
Lubrication and maintenance: Shares lubricating oil with the transmission. Regularly change the transmission oil, check gear backlash and seal conditions, to prevent oil leaks and gear damage.
Fast power take-off series Model | Gear Tooth Ratio (Drive:Driven) | Speed Ratio | Characteristics (Speed/Torque) |
QD40 | 22/40 | 1.05 | 8JS85/8JS85T speed ratio 1.05 teeth 22/40 |
QD40A | 18:19 18/34 | 0.92 | 8JS85E ,85TE 350N.m Speed ratio < 1, speed-increasing type (output speed is higher than input speed, torque slightly reduced) QD40A 18/19 Fast 8JS85E/8JS85TE QD40A 18/34 Fast 8JS85A/8JS85TA |
QD40B | 22:31 | 1.07 | 8JS85F, JS85J,400N.m (slightly speed-reducing), QD40B 22/31 installation position: bottom/left/right, speed ratio 1.07 |
QD40J | 18:34 | 0.904；0.92 | 8JS75TE,8JS85E，8JS85E-C, 8JS95TE-C 8JS85TM |
SDQ34/29 | 1.09 | 400N.m 8JS75C , 8JS85C 8JS95TE.8JS75E | |
QD40K | 16:34 | 1.17 ,1.18 | 8JS85E-C 8JS85TE-C speed-reducing type (output torque increases, speed decreases) QD40K 16/34 series speed ratio 1.17 |
Aftermarket | 16:30 | - | Non-original specification with different tooth count from the original; compatibility with the gearbox needs to be noted 8JSX110TC |
QD40L | 22:42 | 1.1 | 8JS85F-C 8JS85TF-C Speed-reducing |
QD40M | 21/42 | 1.28 | 8JS85F-C |
QD40N | 19:28 | 0.96 | 8JSX95TC,8JSX105TC,8JSX110TC, 8JS85TC,8JSX95TM; QD40N 19/28 teeth |
QD40E | 18 | 1.1 0.86 0.93 | 10JS90/10JS90-B/10JS90A/10JS90A-B ,400N.m QD40E 10-speed series 10JS90/10JS90-B/10JS90A/10JS90A-B , For 10JS90A-1701057-1 intermediate shaft gear 30 teeth, speed ratio: 10JS90/90-B 1.1; 10JS90A/10JS90A-B 0.86 |
QD40F | 17/19 | 10JS90/10JS90-B/10JS90A/10JS90A-B QD40F 17/19 teeth 10-speed series For 10JS90A-1701057-2 intermediate shaft power take-off gear 28 Teeth, speed ratio 10JS90/90-B slow ratio 1.56; 10JS90A/10JS90A-B ratio1.21 | |
QD40I 6D-8 | 23/36 22/36 | 1.059 | 6DS50T/50T-D/6DS60T/6DS60T-B/6DS60T-D QD40I 23/36 teeth, Fast small 6DS series installation position: bottom, speed ratio 1.059 |
QD40Z | 21 | 0.91 | 10JS90A ,400N.m |
QD40 | 22/40 | 1.05 | 8JS85 ,400N.m Bx type 8JS85/8JS85T, installation position: bottom/left/right. speed ratio 1.05, 22/40 |
QC20A | 5J30/38 .200N.m | ||
FZ34/36 | 5J30T-B | ||
QC20B | 28/36 | 1.14 | C6J45T teeth straight 28/36 helical |
QC20C | 28/34 | 5J38TD/5J32TD teeth helical 34/28 straight | |
QC20D C6J45TB | 28/38 22/38 | 1.137 | C6J45TB straight teeth 28/helical teeth 38 speed ratio 1.137 |
C6J45T | 22/36 | 1.137 | C6J45T |
QC20E | 28/30 | 1.0 | C8J45T/C8J45TA straight teeth 28/helical teeth 30 Speed ratio 1.0 |
QH20A | 20:27 | 0.74 | C8J45T/C8J45TA , rear,speed ratio 0.74 |
QC35 | 22/36 | 1.24 | 6DS50T-D ,6DS60T-D, 6DS60TA-D, 6DS70TA-D 6DS40TB-D, 6DS50TB-D /6D box type, installation position: left or right speed ratio 1.24 # power take-of |
QCZ30 C6J50TC | 22/36 20/36 | C6J50TC,6J55T Installation position: left side, straight teeth 22/helical teeth 36 | |
QCZ40 C6J76T | 22/32 | 0.94 | C6J76T 400N.m, installation position Left side, speed ratio 0.94 |
QCD45 105[19/41] | 21/41 19/41 | 1.0 0.89 | 8JS105/125, 8JS105T/125T 450N.m speed ratio 1.0 teeth 21/41 # dump truck |
QCD45A 105A | 16/32 | 8JS105A ,8JS105TA | |
QCD45B | 16/22 | 1.05 | 8JS70A/110A bottom or right side, speed ratio 1.05, teeth16/22 |
QCD45D | 16/33 | 1.05 | 8JSX110A speed ratio 1.05, teeth16/33 |
QCZ70A | 24/27 | 0.93 | 6J80T/6J85T Left side, speed ratio 0.93, Teeth Helical 24/straight 27 |
WB-QH50M | 24/35 | 12JS,12JSX 10JS , rear end 8teeth spline output DIN 5462（ISO 7653) | |
QD60 QD60A | QD60 24/35, two-shaft type the opposite rotation direction of the engine, QD60A 24/35, three-shaft type the same rotation direction as the engine, the traditional mechanical double intermediate shaft main box does not have a synchronizer series (except for small eight gears and smaller eight gears) All other box installation position: bottom ;Special Meshing gears are needed |
III. Differentiation by Performance and Application Scenarios
1.Speed-increasing type (speed ratio < 1, e.g., QD40A):
Suitable for equipment requiring high-speed output (such as high-speed operating devices driven by hydraulic pumps), commonly used in light special vehicles (e.g., small sprinklers, cleaning vehicles).
2.Speed-reducing type (speed ratio > 1, e.g., QD40K, QD40L, QD40N):
Suitable for heavy-duty equipment requiring high torque output (e.g., concrete mixers, large cranes, dump truck lifting systems), which increases torque by reducing speed.
3.Near-constant speed type (speed ratio ≈ 1, e.g., QD40B):
Balances speed and torque, suitable for scenarios with high requirements for speed stability (e.g., precision hydraulic control systems).
IV. Differences Between Original and Aftermarket Parts
• Original parts (e.g., QD40A/J/K/L/B/N):
Strictly match the size, tooth count, and strength standards of the corresponding gearbox, with high reliability. They usually have formal numbers (e.g., 17JK-G18569, G30468) and guaranteed compatibility.
• Aftermarket parts (16:30 teeth):
As replacement parts, they have different tooth counts from the original, which may lead to dimensional deviations or insufficient strength. It is necessary to test the installation compatibility and transmission stability with the gearbox. They are recommended for non-heavy-duty or temporary replacement scenarios.
In summary, when differentiating QD40 series PTOs, it is necessary to first confirm the matched gearbox model, then judge their performance characteristics based on tooth count and speed ratio, and finally select the appropriate model according to operational requirements (speed/torque) and the nature of original/aftermarket parts.
