Results 111 to 120 of about 12,252 (219)
Sealing Performance and Optimization of Maintenance Free Bearing of Beam Pumping Unit
Shiyou jixieThe lubrication and sealing performance of the maintenance free tail bearing(sealed self-aligning roller bearing)of the beam pumping unit designed based on conventional experience cannot effectively apply to the unique swing and crank scissors difference
Wang Xiaogang +6 more
doaj
AX-5 space suit bearing torque investigation [PDF]
The symptoms and eventual resolution of a torque increase problem occurring with ball bearings in the joints of the AX-5 space suit are described. Starting torques that rose 5 to 10 times initial levels were observed in crew evaluation tests of the suit ...
Culbertson, Philip, Jr. +3 more
core +1 more source
The properties of thin-section, four-point-contact ball bearings in space [PDF]
Thin section, four-point-contact ball bearings are increasinly employed in spacecraft mechanisms because of the potential advantages they offer. However, litte was previously known of their torque, thermal conductance and stiffness properties at ...
Rowntree, R. A.
core +1 more source
Application of traction drives as servo mechanisms [PDF]
The suitability of traction drives for a wide class of aerospace control mechanisms is examined. Potential applications include antenna or solar array drive positioners, robotic joints, control moment gyro (CMG) actuators and propeller pitch change ...
Loewenthal, S. H. +2 more
core +1 more source
Practical experiences with worm gearing for spacecraft power transmission applications [PDF]
Experiences of several organizations using worm gearing for spacecraft are discussed. Practical aspects and subtleties of using worm gearing for design and operation is included.
Mccown, William, Purdy, William
core +1 more source
Variable Dynamic Force Vector Rocket Test Apparatus [PDF]
Design and performance characteristics of variable dynamic force vector rocket test ...
Hudson, J. L., Jr. +2 more
core +1 more source
Optimization of Wind Turbine Spindle Bearing Gel-like Grease Performance at Extreme Temperatures. [PDF]
GelsTian Z, Zhang Y, Peng H, Peng B, Meng Z.
europepmc +1 more source
Modern lubricating greases [PDF]
Tribology International, 1977 C.J. Boner, N. Robinson
openaire +2 more sources
Controlled Synthesis of Mg Al-Layered Double Hydroxide as a High-Performance Additive of Bentonite Grease. [PDF]
ACS OmegaWang L +5 more
europepmc +1 more source