Bronze Bushing

K781 - Bronze Bushing

General Features
Technicial Specifications

Kastaş No	d(f7)	D(H7)	L	S3
K781-045	45	50	30	2,483
K781-050	50	55	30	2,483
K781-050/1	50	55	40	2,483
K781-060	60	65	20	2,483
K781-060/1	60	65	30	2,483
K781-060/2	60	65	40	2,483
K781-060/3	60	65	50	2,483
K781-060/4	60	65	60	2,483
K781-070	70	75	30	2,483
K781-070/1	70	75	40	2,483
K781-075	75	80	30	2,465
K781-075/1	75	80	40	2,465
K781-080	80	85	30	2,465
K781-080/1	80	85	40	2,465
K781-080/2	80	85	50	2,465
K781-085	85	90	30	2,465
K781-085/1	85	90	40	2,465
K781-090	90	95	30	2,465
K781-090/1	90	95	40	2,465
K781-090/2	90	95	50	2,465
K781-090/3	90	95	60	2,465
K781-095	95	100	30	2,465
K781-095/1	95	100	40	2,465
K781-095/2	95	100	50	2,465
K781-095/3	95	100	60	2,465
K781-100	100	105	30	2,465
K781-100/1	100	105	40	2,465
K781-100/2	100	105	50	2,465
K781-100/3	100	105	60	2,465
K781-105	105	110	50	2,465
K781-105/1	105	110	60	2,465
K781-110	110	115	50	2,465
K781-110/1	110	115	60	2,465
K781-115	115	120	60	2,465
K781-120	120	125	50	2,440
K781-120/1	120	125	60	2,440
K781-120/2	120	125	70	2,440
K781-125	125	130	50	2,440
K781-130	130	135	60	2,440

Kastaş K781 bushings particularly appropriate for high temperature environment where machine must be successive on long period working condition. Bronze backing provides high performane even if PTFE side gets worn.

PRODUCT ADVANTAGES
• Due good thermal conductivity of bronze , it diverts heat.
• Due to good anti-corrosion ability of bronze it can be used in the feeble acid and alkali condition.
• High load resistance

MATERIAL STRUCTURE

PTFE with Fiber

Porous bronze

Bronze backing

TECHNICAL DATA
Max. Load	Static Very low speed Rotating oscillating	250 N/mm² 140 N/mm² 60 N/mm²
Max. PV (dry running)	Short-term operation Continuous operation	3.6 N/mm².m/s 1.8 N/mm².m/s
Temp. Limit	-195°C~+280°C
Friction Coefficient	0.03~0.02 μ
Max. Speed	Dry Running Hydrodynamic operation	2 m/s 5 m/s
Thermal conductivity	60 W(m.k)^-¹
Coefficient of thermal expansion	18x10^-6 .K^-¹