INW-2S Composite Bushings , Steel Backing Self Lubricating Dry Bush

Price Negotiable

Price: Negotiation

MOQ: 1 PCS

Delivery Time: 5 work days or based on quantity

Brand: INWAY

Product Description

INW-2S Composite Bushings - Steel Backing Self Lubricating Dry Bush

High-performance composite bushings featuring steel backing with self-lubricating properties for dry running applications.

Key Features

Suitable for dry running with low coefficient of friction
Reduced wear with excellent sliding characteristics
Transfer film protects mating metal surfaces
Ideal for rotating and oscillating movements
High chemical resistance
Low water absorption and swelling
Enhanced friction and wear resistance over CSB-50 range under lubricated operation

Technical Specifications

Parameter	Value	Parameter	Value
Max. Load (Static)	250 N/mm²	Max. Speed (Dry Running)	0.08~0.20 m/s
Very Low Speed	140 N/mm²	Hydrodynamic Operation	0.02~0.08 m/s
Rotating/Oscillating	60 N/mm²	Friction Coefficient (Dry)	2 m/s
Hydrodynamic	>2 m/s	Thermal Conductivity	42 W/(m·K)
Max. PV (Dry Running - Short-term)	3.6 N/mm²·m/s	Coefficient of Thermal Expansion	11×10⁻⁶/K
Max. PV (Dry Running - Continuous)	1.8 N/mm²·m/s	Temperature Range	-195℃ to +280℃

Multi-Layer Structure

PTFE/Fibre Mixture (0.01~0.03mm): Contact surface for rotating shaft. Creates solid lubricant film that coats the shaft through combination of PTFE particles and sintered bronze material.
Sintered Bronze Powder (0.20~0.35mm): Thermally fused powdered copper anchors PTFE layer and conducts thermal buildup away from bearing surfaces.
Low-Carbon Steel Backing: Provides exceptional stability, load carrying capacity, and heat dissipation characteristics.

Industry Applications

Automotive: Tractors, combines, crop sprayers, earth-movers, graders, construction equipment, power steering cylinders, steering gear thrust washers, disc brakes, calipers, pistons, shock absorbers, governor linkage, windshield wiper motors, tilt gear assemblies
Business Machines: Photocopy machines, typewriters, mail sorters, postage meter systems, computer terminal printers, peripheral equipment, automatic printing devices, mail processing machinery
Hydraulics and Valves: Gear pumps, rotary pumps, water pumps, axial piston pumps, ball valves, butterfly valves, poppet steam valves, valve trunnions
Home Appliances: Tape recorders, refrigerators, air conditioners, cleaners, polishers, sewing machines, ovens, dishwashers, clothes washing machines
Additional Applications: Materials handling, marine engines, packaging equipment, textile machinery, tools

Dimensional Specifications - Part 1

d min	d max	Axle	Housing h7	Wall Thickness	h oil hole	f1	f2	l0 -0.40
10	12	10 -0.022	12 +0.018	0.955	0.980	4	0.6	0.3
12	14	12 -0.027	14 +0.018					1210
14	16	14 -0.027	16 +0.018					1415
15	17	15 -0.027	17 +0.018					1515
16	18	16 -0.027	18 +0.018					1615
18	20	18 -0.027	20 +0.021					1815
20	23	20 -0.033	23 +0.021	1.445	1.475	0.6	0.4	2015
22	25	22 -0.033	25 +0.021					2215
25	28	25 -0.033	28 +0.021	6				2515
28	32	28 -0.033	32 +0.025	1.935	1.970	1.2	0.4	2820
30	34	30 -0.033	34 +0.025					3020
35	39	35 -0.039	39 +0.025					3520
40	44	40 -0.039	44 +0.025	8				4020
45	50	45 -0.039	50 +0.025	2.415	2.460	1.8	0.6	4520
50	55	50 -0.039	55 +0.030					5030
55	60	55 -0.046	60 +0.030					5530
60	65	60 -0.046	65 +0.030					6030

Dimensional Specifications - Part 2

d min	d max	Axle	Housing h7	Wall Thickness	h oil hole	f1	f2	l0 -0.40
65	70	65 -0.046	70 +0.030	2.415	2.460	8	1.8	0.6
70	75	70 -0.046	75 +0.030					7040
75	80	75 -0.046	80 +0.030					7540
80	85	80 -0.046	85 +0.035	2.385	2.450	9.5	1.8	1.8
85	90	85 -0.054	90 +0.035					8540
90	95	90 -0.054	95 +0.035					9040
100	105	100 -0.054	105 +0.035					10050
105	110	105 -0.054	110 +0.035					10560
110	115	110 -0.054	115 +0.035					11060
120	125	120 -0.054	125 +0.040	1.8	0.6			12060
125	130	125 -0.063	130 +0.040					12560
130	135	130 -0.063	135 +0.040					13050
140	145	140 -0.063	145 +0.040					14050
150	155	150 -0.063	155 +0.040					15050
160	165	160 -0.063	165 +0.040	9.5				16050
170	175	170 -0.063	175 +0.040					17050
180	185	180 -0.063	185 +0.046					18050
190	195	190 -0.072	195 +0.046					19050
200	205	200 -0.072	205 +0.046					20050
220	225	220 -0.072	225 +0.046	9.5				22050
240	245	240 -0.072	245 +0.046					24050
250	255	250 -0.072	255 +0.052					25050
260	265	260 -0.081	265 +0.052					26050
280	285	280 -0.081	285 +0.052					28050
300	305	300 -0.081	305 +0.052					30050