Structure and Features
 
  base metal laye (Bronze backing )
    1. This is a kind of bushes wrapped by bronze strip.
  2. Improved performace compared with JM90(larger grease
    reserboirs increase maintenace 
interval ; dirt and debris swept into perforations, there by 
    reducing wear
3. Chemical resistance Initial pre-lubrication at assembly required.
4. Optimum perfomance under relatively high loads and low speeds.
 
 
Chemical composition
Material type Cu% Sn% P% Pb% Zn%
JM92 91.3 8.5 0.2 / /
 
  
Tech. Data
Bearing Properties Unit Value Microsection
Dry  
 
Maximum sliding speed U m/s 
Maximum PU factor N/*m/s=W/ 
Coefficient of friction f - 
Grease lubrication  
Maximum silding speed U m/s 2.5
Maximum PU factor N/*m/s=W/ 2.8
Coefficient of friction f - 0.06 ~ 0.15
General  
Maximum temperature T max  +150
Minimum temperature T min  -40
Maximum load P stabic N/ 120
Maximum load P dynamic N/ 40
Shaft surface finish Ra  0.8
Shaft hardness HB >200
Shaft hardness for longer service life HB >350
 
 
Operating Conditions
 dry not suitable
 oiled fair
 greased good
 water poor
 process fluid poor
 Availability
Ex Stock
To order
.Cylindrical bushes
.Thrust washres
 
.Strip
 
.Non-standard parts
 
 
 
Characteristics
  1. Thin wall construction permits compact bearing assembly
2. Low friction
3. excellent chemical resistance.
4. This protect mating surface from external factors where oil film is hard to be formed.
5. Available from stock in a wide range of standard sizes.
6. Optimum performance under relatively high loads and low speeds, Suitable for reciprocating, oscillation or 
  intermittent motion
7. When a Grease lubrication, it have a low coefficient of friction.
8. Improved performace compared with JM90(larger grease reserboirs increase maintenace 
  interval ; dirt and debris swept into perforations, there by reducing wear
 
Bushes tolerance
BEARING BORE BUSH Out Dia. HOUSING Dia.
(H7) HOUSING Dia.
(H9) SHAFT Dia
(f8)
10 ~18 + 0.065
+0.030 +0.018
0 +0.043
0 -0.016
-0.043
18 ~30 +0.075
+0.035 +0.021
0 +0.052
0 -0.020
-0.053
30 ~50 +0.085
+0.045 +0.025
0 +0.062
0 -0.025
-0.064
50 ~ 80 +0.100
+0.055 +0.030
0 +0.074
0 -0.030
-0.076
80 ~120 +0.120
+0.070 +0.035
0 +0.087
0 -0.036
-0.090
120 ~180 +0.170
+0.100 +0.040
0 +0.100
0 -0.043
-0.106
180 ~ 250 +0.210
+0.130 +0.046
0 +0.115
0 -0.050
-0.122
250 ~ 315 +0.260
+0.170 +0.052
0 +0.130
0 -0.056
-0.137
 
 
Oil hole type