SRH12 Timken Ring Block Friction and Wear Testing Machine (Timken
Method)
The SRH12 Timken ring block friction and wear testing machine, also
known as the Timken testing machine, measures the bearing capacity
of various lubricants (lubricating oil, lubricating grease, and
solid lubricating film): under specified test conditions, the
maximum test force that the lubricant can withstand before the oil
film ruptures is compared to the OK value, which complies with the
national standard SHT0203-1992 extreme pressure performance
measurement method for lubricating grease (Timken testing machine
method). The friction and wear performance of the sample is tested
by line contact sliding friction. The working principle is that the
active component is a standard rotating ring, and the passive
component is a fixed rectangular block of standard size. By
measuring the width of the strip-shaped wear marks on the
rectangular block of the passive specimen under different loads, as
well as the friction force and friction coefficient between the
friction pair materials, the bearing capacity of the lubricant and
the friction and wear performance of the friction pair materials
are evaluated. It can evaluate the lubrication performance of
various lubricants under oil immersion lubrication conditions,
especially suitable for simulating the anti scratch performance of
medium and high automotive gear oils, and can be used for the study
of wear performance of various metal, non-metal materials and
coatings.
The machine is a frame structure, controlled by servo motors to
load levers, and the various test parameters are set in units for
easy operation and accurate and reliable test readings. The machine
adopts an integrated structure design, combining computers,
software, industrial control modules, and actuators in one frame to
complete the control of the entire experimental process. It can
collect test data in real time and draw corresponding test curves,
and can store, retrieve, print and output test data or curves at
will
Meet the standards:
GB/T 11144-2007 "Determination of Extreme Pressure Properties of
Lubricants - Timken Method"
SH/T0203-2014 "Determination of Extreme Pressure Performance of
Lubricating Greases - Timken Testing Machine Method"
ASTM D2782
OK value: The maximum mass (weight) added to the load lever weight plate
during the determination of lubricant carrying capacity without
causing scratches or jamming.
Scratch value: The minimum mass (weight) added to the load lever weight plate
when scratching or jamming occurs during the determination of
lubricant bearing capacity.
Method summary:
Before starting the experiment, the sample needs to be preheated to
37.8 ℃± 2.8 ℃. During the experiment, a steel test ring rotates
tightly against a steel test block. The rotational speed is
123.71m/min ± 0.77m/min, which is equivalent to a shaft speed of
800r/min ± 5r/min.
The two values that need to be determined are the minimum mass
(weight) of the oil film rupture between the rotating test ring and
the fixed test block that causes biting or scratching, which is the
scratch value. The maximum mass (weight) at which the oil film
between the rotating test ring and the fixed test block does not
rupture and does not cause jamming or scratching is the OK value.
Main technical specifications:
| Project Name | Technical indicators |
| Maximum test force | 3000N |
| Accuracy of experimental force | ±1% |
| Maximum friction force | 300N |
| Friction accuracy | ±3% |
| Main spindle speed range | 100-3000r/min 200-6000r/min (optional) |
| Spindle speed error | ±2% |
| Main spindle speed display range | 0-9999999 |
| Time display range | 0-9999s or min |
| Test oil temperature | RT -100 ℃ (HX-PID self-tuning temperature control system) |
| Temperature control accuracy | ±2℃ |
| Standard test specimens for experimentation | Ring diameter 49.22 × 13.06mm, Test block 12.32 × 12.32 × 19.05 |
| Dimensions of the testing machine | 1000×700×1470 |
| Net weight of testing machine | 450kg |
Note: The appearance pictures, dimensions, volume, and weight of the
instrument are for reference only. If there are any updates to the
instrument, there may be slight changes without prior notice.
Instrument Quality Assurance Certificate
Shandong Shengtai Instrument Co., Ltd. provides the following
quality assurance for the instruments sold to you:
----The provided instrument materials are brand new, meet quality
standards, and have a manufacturer's certificate of conformity;
----The materials and main components provided meet the technical
requirements specified in the technical documentation;
----The overall quality assurance period of the equipment is one
year (excluding normal wear and tear of vulnerable parts).
----We are responsible for free maintenance of any instrument
quality issues that occur during the warranty period. Due to
equipment malfunction caused by the user's responsibility, we are
responsible for repairing and charging reasonable fees.
----Lifetime discounted supply of parts for equipment, and lifetime
maintenance and repair of the entire machine.
----After the expiration of the warranty period, if the user needs
maintenance and technical services, we will only charge a cost fee.
Packaging and Delivery
1. Packaging of goods: standard wooden or cardboard boxes.
2. Internal packaging: Elastic pearl cotton packaging product,
hardwood board+strong bandage to fix corners.
| Number | Name | Quantity | Unit | Note |
| 1 | Host | 1 | Unit | |
| 2 | Instruction Manual | 1 | Copy | |
| 3 | Certificate of Conformity | 1 | Copy | |
| 4 | Packing List | 1 | Copy | |
| 5 | Heater | 1 | Piece | |
| 6 | Room temperature oil chamber cover | 1 | Piece | |
| 7 | Sealing ring for chamber cover | 1 | Piece | |
| 8 | High temperature oil chamber cover | 1 | Piece | |
| 9 | Ring block specimen | 1 | Set | |
| Equipped with tools |
| 1 | Unloading tool | 1 | Set | |
| 2 | Lifting screws | 4 | Piece | |
| 3 | Machine tool isolator | 4 | Piece | |
| 4 | Measuring cup | 1 | Piece | |
