Oil-free
Plain
Plain
Oil-free
OIL-FREE LEADER BUSHINGS FOR HIGH TEMPERATURE USE
OIL-FREE LEADER BUSHINGS FOR HIGH TEMPERATURE USE –STRAIGHT / SPECIAL COPPER ALLOY TYPE−
Straight Leader Bushings
Head Leader Bushings
Leader pins Support Pins
Leader pins Support Pins
Suitable
Suitable
GBSKZ
GBHKZ
2 L
3
t
1.6
1.6
1.6
1.6
－ 0.01 － 0.03 D
－ 0.03 － 0.01
1 - 3
ℓ
D
0 － 0.2 T
ℓ
－ 0.5 － 1.0
d
－ 1.0 － 0.5
L
F6
L
d F6
• Usable temperature range for the special solid lubricant is up to 250°
• Usable temperature range for the special solid lubricant is up to 250°
M Material
Special high strength brass (CAC304 type) Special solid lubricant (embedded)
M Material
Special high strength brass (CAC304 type) Special solid lubricant (embedded)
E The arrangement of graphite differs depending on the size.
E The arrangement of graphite differs depending on the size.
ℓ
ℓ
d F6
T
D m6
H
t
d F6
D m6
L20
L25
L30
L35
L40
L50
L60
L20
L25
L30
L35
L40
L50
+ 0.022 + 0.013
+ 0.018 + 0.007
10 12 13 16 20 25 30
14 18 20 25 30 35 42
16 22 25 30 35 40 47
20 20 20 20
20 25 25 25 25 25 25
– –
– –
– –
– – –
– – – –
13 16 20 25 30
20 25 30 35 42
20 20 20 20 20
25 25 25 25 25
25 30 30 30 30
–
– –
– – –
+ 0.021 + 0.008
+ 0.027 + 0.016 6
5
35 35 35 35
+ 0.027 + 0.016
+ 0.021 + 0.008
25 30 30 30 30
25 35 35 35 35
25 30 40 40 40
40 40 40
+ 0.033 + 0.020
+ 0.025 + 0.009
6
30 40 50 50
50 50
8
– – –
40 50 60
+ 0.033 + 0.020
+ 0.025 + 0.009
8
Part Number
L
Type
d
13 16 20 25 30
20 20 20 20 20
25 25 25 25 25
30 30 30 30 30
Part Number
L
35 35 35 35
Type
d
GBSKZ
40 40 40
10 12 13 16 20 25 30
20 20 20 20
25 25 25 25 25 25 25
50 50
30 30 30 30 30
35 35 35 35 35
40 40 40 40 40
GBHKZ
50 50 50 50
Part Number – L GBSKZ20 – 25
60 60 60
Order
Quotation
Delivery
Part Number – L GBHKZ16 – 30
Order
E A coating agent (black) is applied to the inner diameter of the bush to obtain heat resistance and initial running. E Depending on the coating agent, it may be difficult for leader pins, etc. to insert, hence to obtain the initial running, do not remove the coating agent. E The coating agent can be removed using an organic solvent and the like.
Quotation
Delivery
E A coating agent (black) is applied to the inner diameter of the bush to obtain heat resistance and initial running. E Depending on the coating agent, it may be difficult for leader pins, etc. to insert, hence to obtain the initial running, do not remove the coating agent. E The coating agent can be removed using an organic solvent and the like.
■ Stopper for The Straight Leader Bushing Screw plugs are commonly used as a stopper to hold straight leader bushings in place. The bushing is provided with a groove on its outer circumference where the screw plug is locked in.
Example
Since the screw plug does not directly hold the bushing's thin wall, deflection of its internal diameter can be minimized.
Leader Bushings Internal diameter d
Applicable Screw Plugs MSW 6 MSW 8
13–20 25–30
831
832
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