CBL Solid-lubricating And Maintenance-free Sliding Bearings
CBL SELIDING BEARING
Solid-lubricating and Maintenance-free Sliding Bearings
CBL-10 Self-lubricating Bearings
Solid-lubricating and Maintenance-free Sliding Bearings
CBL-20 Marginal Lubrication Bearings
Solid-lubricating and Maintenance-free Sliding Bearings
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Products List
CBL-500 Solid-lubricating Inlaid Bushing
CBL-090 BronzeWrapped Bushing
CBL-800 Bi-metal Bushing
CBL-10 Metal-Polymer Composite Bushing
CBL-20 Marginal Lubrication Bushing
CBL-FZ Ball Retainer Bearing
CBL-FR Bornze Self-lubricating Bearing
CBL-FD PTFE Soft Strips
CBL-FU Powder Metallurgy Oil-retaining Bearing
Products
Applications
Metal-polymer self-lubricating composite materials consist of metal backing sintered porous bronze with PTFE polymer as working layer. The metal backing provides mechanical strength, while the bronze sintered layer provides a strong mechanical bonding between the backing and the bearing lining, the PTFE polymer offers exceptional low friction even under dry condition and the thermoplastic polymer is generally designed to operate with marginal lubrication. The construction promotes dimensional stability and improves the thermal conductivity. This material meets the demands for longevity, speed and temperature criteria with or without lubrication.
Agricultural machinery: tractors, combine harvesters, crop sprayers, bulldozers, graders, etc.
Automotive industry: power steering pump, steering gear thrust washers, disc brakes, shock absorbers, hinges, wiper, chair recliners, air valves and solenoid valves, etc.;
Business machines: duplicator, fax machine, automatic printing devices, mail processing machinery...
Hydraulics and valves: pumps including gear, rotary, water, axial piston, and other types, ball, butterfly, poppet steam, and other valves and valve trunnions...
Home appliances: tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines...
And materials handling, marine engine, packaging, textile equipment, tools...etc.
Material Structure
Wear-resisting Performance
Factor
Note: Various materials are suitable for CBL-10 Series products according to different working conditions, such as bronze backing (CBL-1B), stainless steel backing (CBL-1S) and lead-free material (CBL-1W).
1. "Running-in" phrase: PTFE compound on the bushing is transferred to its mating surface and forms a lubricating film. At this phase, the friction coefficient is bigger, thus the abrasion pace is very quick. See the curve showed in area I of the graph.
2. "Stabilization" abrasion phrase: After the "Running-in
phase", the friction happens between PTFE and PTFE, thus the friction coefficient is smaller and keeps steady. As a result, the wear rate is low and steady. See the curve showed in areaⅡof the graph.
3. "Sharp" abrasion phrase: As PTFE in the porous layer is slowly consumed up, not enough lubricant can be supplied to the gliding media. Friction coefficient and wear rate will rapidly rise. When 70% of the bronze surface is exposed, service life of SRI01 closes to its end. See the curve showed in area Ⅲof the graph.
CBL-10 is of excellent anti-abrasion performance,mainly due to the particular molecule structure of PTFE. The abrasion process can be generally divided into three phases, so there kinds of friction coefficient. See the right graph:
1). PV Value
PV value is an effective criterion to calculate the service life of CBL-10. If there is need to prolong the service Life, PV value must be reduced.
2). Ambient Temperature
The higher the working temperature is, the shorter the life of the products would be.
3). Quality of the Mating Surface
Service life BKL-1 can be obviously prolonged if its mating axis is made by alloy steel or is plated by hard chrome and with surface Roughness Ra=0.4~0.63
Besides the standard products displayed in the list of this catalogue. We can also supply non-standard products or develop according to customer design.
CBL-10 Tech. Deta
The use of parameters
CBL-10
Lead-Free
Bushing
CBL-1B
Bronze-Based
Bushing
CBL-1D
Hydraulic
Bushing
CBL-1W
Gear Pump
Bushing
CBL-1P
Reciprocating
Motion Bushing
CBL-1S
Stainless Steel
Bushing
Parameters
140
140
140
140
140
140
250
250
250
250
250
250
60
60
60
60
60
60
5
5
3
10
2.5
4.5
0.04~0.20
0.03~0.18
0.04~0.20
0.04~0.20
0.04~0.20
0.04~0.20
3.6
4.3
3.8
4.3
3.6
3.6
50
60
50
60
50
50
-295~ +270
Thermal conductivity
W/m·k
13
18
16
13
13
16
Linear expansion
11×10-6/K
21×10-6/K
15×10-6/K
11×10-6/K
11×10-6/K
15×10-6/K
Load capacity(Dynamic)
N/mm²
-295 ~ +280
-195 ~ +280
-195 ~ +280
-195 ~ +300
-195~ +280
Oscillating N/mm²
Friction Coef. μ
PV limit(Oil) N/mm².m/s
Load capacity(Static)
N/mm²
Speed limit(Oil) m/s
PV limit(Dry) N/mm².m/s
Temp. Limit ℃
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