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| Brand Name: | viiplus |
| Model Number: | Self-lubricating bearing |
| MOQ: | negotiable |
| Price: | According to product specifications |
| Payment Terms: | L/C, T/T |
| Supply Ability: | production capacity can be supplied in large quantities |
Straight MDZB Oil-Free Bushings with Multi-Layer Tin Plating are designed for high-performance, lubrication-free applications. These bushings feature a unique multi-layer tin plating that enhances wear resistance and durability, ensuring reliable operation over extended periods.
The straight design of the bushings allows for easy installation and integration into various mechanical systems. The oil-free feature eliminates the need for regular lubrication, reducing maintenance requirements and operational costs.
The multi-layer tin plating not only improves wear resistance but also provides corrosion protection, enhancing the bushings' lifespan in challenging environments. This plating also contributes to the smooth operation of the bushings, minimizing friction and heat generation.
Wh used in motors, pumps, or other rotating machinery, Straight MDZB Oil-Free Bushings with Multi-Layer Tin Plating offer a robust and dependable solution for lubrication-free applications. Their high performance and durability make them an excellent choice for industrial applications where reliability and longevity are paramount.
| Type | Straight | Bushing Material | Sintered Bronze with | Maximum Allowable PV Value Range(N/mm2•m/s) | 2.1～5.0 |
|---|---|---|---|---|---|
| Maximum Allowable PV Value(N/mm2•m/s) | 3.6 | Maximum Allowable Load(N/mm2) | 49 | Maximum Allowable Velocity(m/s) | 0.65 |
| Mounting Hole Fits | H7 |
Has a Thin wall and is compact.
・Materials
[ M ] Material: Filler Added Layer
Sintered Bronze Layer
Steel-backed Metal Layer (Low Carbon Steel: Tin Plating)
Allowable Temperature: -195 ~ 280°C
| Part Number | Part Number |
| MDZB6-10 | MDZB18-30 |
| MDZB6-12 | MDZB20-10 |
| MDZB8-5 | MDZB20-12 |
| MDZB8-6 | MDZB20-15 |
| MDZB8-8 | MDZB20-20 |
| MDZB8-10 | MDZB20-25 |
| MDZB8-12 | MDZB20-30 |
| MDZB8-15 | MDZB22-10 |
| MDZB10-6 | MDZB22-12 |
| MDZB10-8 | MDZB22-15 |
| MDZB10-10 | MDZB22-20 |
| MDZB10-12 | MDZB22-25 |
| MDZB10-15 | MDZB22-30 |
| MDZB10-20 | MDZB25-10 |
| MDZB12-6 | MDZB25-12 |
| MDZB12-8 | MDZB25-15 |
| MDZB12-10 | MDZB25-20 |
| MDZB12-12 | MDZB25-25 |
| MDZB12-15 | MDZB25-30 |
| MDZB12-20 | MDZB25-35 |
| MDZB13-8 | MDZB30-12 |
| MDZB13-10 | MDZB30-15 |
| MDZB13-12 | MDZB30-20 |
| MDZB13-15 | MDZB30-25 |
| MDZB13-20 | MDZB30-30 |
| MDZB15-8 | MDZB30-35 |
| MDZB15-10 | MDZB30-40 |
| MDZB15-12 | MDZB30-50 |
| MDZB15-15 | MDZB35-20 |
| MDZB15-20 | MDZB35-25 |
| MDZB15-25 | MDZB35-30 |
| MDZB16-10 | MDZB35-35 |
| MDZB16-12 | MDZB35-40 |
| MDZB16-15 | MDZB35-50 |
| MDZB16-20 | MDZB40-12 |
| MDZB16-25 | MDZB40-15 |
| MDZB18-10 | MDZB40-20 |
| MDZB18-12 | MDZB40-25 |
| MDZB18-15 | MDZB40-30 |
| MDZB18-20 | MDZB40-35 |
| MDZB18-25 | MDZB40-40 |
| MDZB40-50 | |
| MDZB50-20 | |
| MDZB50-25 | |
| MDZB50-30 | |
| MDZB50-35 | |
| MDZB50-40 | |
| MDZB50-50 | |
| MDZB50-60 |
Combine the unique versatility of material with the flexibility of manufacturing. Contact Us Today. Saves You Time & Money In Research, Design & Production Costs. Free Design Assistance. Quality Bushings & Bearings. Custom Self-lubricating Bearing Solutions.
Bushings, or plain bearings, operate with sliding motion between the moving surfaces. Bushings are selected based on the rotating speed and the applied load. Most bushings do not require additional lubrication to operate.
Self-lubricating bronze composite bushings consist of a layer sintered on a brown strip. These bushings are corrosion resistant and suitable for high temperature applications that can be made without the use of oil requiring long duty cycles.
This type of self-lubricating bearing is used in the radial or axial direction, especially in the steel and cement industries. Self-lubricating -bronze composite bushings can be used in panels as bridge supports, since the thick sliding layer on the inner surface can withstand loads of up to 140 N / mm².
1. / Pb 0.01 ~ 0.03mm mixture, provides an excellent initial transfer film, which effectively covers the contact surface of the socket assembly, forming an oxide type solid lubricant film.
2. sintered bronze powder 0.20-0.35mm, provides max. thermal conductivity away from the bushing surface, also serves as a reservoir for the -lead mixture.
3. Bronze bracket, gives exceptionally high load capacity, excellent heat dissipation. Have very good corrosion resistance.
| Support meterail | bronze tin-plated0.7-2.3mm |
| Intermediate layer | Sintered bronze0.2-0.3mm |
| Sliding layer | 0.01-0.03mm |
| Resilience | 140 N/mm² |
| Temperature Range | -195°C +300°C |
| Sliding Speed Limit | 5 m/s |
| Friction Coefficient | 0.03 - 0.18 |
| Limit Value (Dry) | 4.3 N/mm² × m/s |
| Limit Value (Oil) | 50 N/mm² × m/s |
Composite Plain Bearing Dry type composite plain bearings are mainly used in bearing assemblies where heavy loads have to be carried and where rotational or oscillatory movements are relatively slow.
Self-lubricating Bearing forms available in standard dimensions
Self-lubricating Bearing forms made to order: standard forms in special dimensions, thrust washers, flanged thrust washers, half-bearings, special shapes obtained by stamping or deep drawing, customized bearing designs.
| OPERATING PERFORMANCE | |
| Dry | Very Good |
| Oil lubricated | Good |
| Grease lubricated | Fair |
| Water lubricated | Good |
| Process fluid lubricated | Fair |
| GENERAL | Unit | Value | |
| Maximum load, p | Static | N/mm2 | 140 |
| Dynamic | N/mm2 | 140 | |
| Operating temperature | Min | °C | -200 |
| Max | °C | 280 | |
| Coefficient of linear thermal expansion | Parallel to the surface | 10-6/K | 18 |
| Normal to the surface | |||
| 10-6/K | 36 |
| DRY | ||
| Maximum sliding speed, U | m/s | 2.5 |
| Maximum pU factor | N/mm2 x m/s | 1.8 |
| Coefficient of friction | 0.02 - 0.25 * |
| OIL LUBRICATED | ||
| Maximum sliding speed, U | m/s | 5 |
| Maximum pU factor | N/mm2 x m/s | 5 |
| Coefficient of friction | 0.02 - 0.12 |
| RECOMMENDATIONS | |||
| Shaft surface roughness, Ra | Dry | µm | 0.3 - 0.5 |
| Lubricated | µm | ≤ 0.05 - 0.4 * | |
| Shaft surface hardness | Unhardened acceptable, improved bearing life > 200 HB | ||
* Depending on operating conditions
This type of bearing is used radially or axially, particularly in the steel and cement industries.
Industrial: aerospace, agricultural equipment, construction equipment, material handling equipment, forming machines - metal, plastic and rubber; office equipment, medical and scientific equipment, packaging equipment, pneumatic and hydraulic equipment cylinders, pumps and motors, railways and tramways, textile machines, valves, etc.
Other: marine and offshore equipment, other applications in water or in outdoor environments
It can meet the demanding criteria of long life and trouble-free performance with or without lubricant, especially for high chemical resistance requirements.
The Bronze Backed bushing is widely used in steel metallurgy in applications such as roller groove bushings of later casting machines, concrete injection pumps and screw conveyors for concrete. They can also be made of steel housings or be transformed into flanged bushings that can move in both radial and axial directions.
The Bronze Backed bushing is particularly suitable for high temperature environments where no oil is efficient and the machine must operate under consecutive long term conditions.
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