Split Type CuSn8 Bronze Flange Slide Bearings: VIIPLUS’s Robust
Solution for Heavy-Duty Applications
In industries where machinery faces relentless stress, high loads,
and harsh environments, bronze bearings are the unsung heroes ensuring smooth operations. VIIPLUS
elevates this critical component with its Split Type CuSn8 Bronze Flange Slide Bearings—engineered for unmatched durability, easy installation, and
maintenance-free performance. Discover how these bearings
outperform traditional solutions in demanding settings.
**Why Split Type CuSn8 Bronze Flange Slide Bearings?**
Designed for sliding applications requiring high wear resistance and longevity, VIIPLUS’s split-type bearings combine the superior properties of
CuSn8 bronze alloy with innovative engineering. Here’s what sets them apart:
Split Design for Effortless Installation
- Easy Assembly: The split structure allows the bearing to be divided into
sections, enabling quick installation around existing shafts
without disassembling machinery.
- Flexible Alignment: Ideal for applications where precise alignment is challenging,
reducing downtime and labor costs.
CuSn8 Bronze Alloy: Built to Endure
- Material Composition: 7.5–8.5% tin (Sn), phosphorus (P: 0.01–0.4%), and copper (Cu)
balance, with trace elements for enhanced strength.
- Key Properties:
- High Load Capacity: Withstands up to 120 N/mm² under oscillating motion and 40 N/mm² for rotating shafts.
- Corrosion & Wear Resistance: Thrives in moisture-rich or chemically aggressive environments.
- Thermal Stability: Maintains integrity at elevated temperatures common in industrial
machinery.
Flange for Enhanced Stability
- The integrated flange provides rigid support, preventing axial displacement and ensuring secure positioning
during high-vibration operations.
Self-Lubricating Efficiency
- Diamond Oil Pockets: Rolled or perforated surfaces retain grease, creating a
consistent lubricating film that reduces friction and extends
maintenance intervals.
- Maintenance-Free Operation: Perfect for hard-to-access machinery in construction, marine, or
automotive systems.
Applications: Where VIIPLUS Bearings Excel
VIIPLUS’s Split Type CuSn8 Flange Bearings are trusted in
industries demanding reliability under pressure:
- Construction Machinery: Excavators, cranes, and hydraulic systems.
- Automotive: Heavy-duty suspensions, steering columns, and transmission
components.
- Industrial Equipment: Conveyors, pumps, and presses requiring oscillating or rotating
motion.
- Marine Engineering: Propeller shafts, winches, and offshore equipment exposed to
saltwater.
Product Spotlight: Wrapped Bronze Bushing (090) for Construction
Machines
A flagship product in VIIPLUS’s portfolio, this bearing exemplifies
precision and resilience:
- Material: CuSn8 bronze alloy, RoHS-compliant.
- Design:
- Thin-walled, space-saving construction for larger shaft diameters.
- Optional flanged or straight configurations.
- Diamond or round oil pockets for grease retention.
- Sizes: Metric dimensions from ID 12 mm to 100 mm, with customizable lengths and OD.
Technical Specifications:
- Load Capacity: 120 N/mm² (oscillating), 40 N/mm² (rotating).
- Standards: Compliant with DIN, ISO, and international engineering
guidelines.
Advantages Over Traditional Bearings
- Space Efficiency: Thin-walled design reduces bulk without compromising strength.
- Cost Savings: Extended service life lowers replacement frequency.
- Versatility: Compatible with grease lubrication and hardened steel shafts.
- Global Compliance: Meets RoHS and hazardous substance restrictions.
**Why Choose VIIPLUS?**
- Expertise: Decades of experience in metallurgy and bearing design.
- Custom Solutions: Tailored dimensions, lubrication patterns, and flange designs.
- Quality Assurance: Rigorous testing for load, wear, and corrosion resistance.
- Fast Delivery: Global logistics network for urgent industrial needs.
Upgrade to VIIPLUS Split Type CuSn8 Bronze Flange Slide Bearings
Whether you’re retrofitting machinery or designing new systems,
VIIPLUS delivers bearings that excel under extreme conditions. Reduce downtime, enhance efficiency, and cut costs with components built for the long haul.
Contact VIIPLUS Today for quotes, technical support, or custom engineering solutions.
Let’s keep your machinery moving!
Meta Description: Discover VIIPLUS’s Split Type CuSn8 Bronze Flange Slide
Bearings—high-load, self-lubricating, and RoHS-compliant. Ideal for
construction, marine, and automotive industries. Explore specs &
applications.
Keywords: Split type bronze bearings, CuSn8 flange bearings,
maintenance-free sliding bearings, wrapped bronze bushing 090,
industrial bronze bushings, VIIPLUS bearings, high load capacity
bronze alloy.
Slide bronze flange bearings, Your specialist for copper and copper
alloys bushing, Slide bearing with lubrication hole. Monometallic
Bronze Bushings
BUJE BRONCE 35X40X20 WB802
BUJE BRONCE 50X55X40 WB802
Wrapped bronze perforated bearings, Split Bronze Bushing Widely Used for Mining Machinery.
bronze bushings wrapped rolled bushings are made of forged CuSn8 material and despite their thin-walled structure, they withstand
very high loads. Therefore, these bronze bushings are for bronze swinging bushings
(oscillating movement), the most common use for rolled bushings.
The excellent tin bronze material provides the bushings with excellent sliding properties and high wear resistance.
rolled bushings are used, on the one hand, in standardised
dimensions with lubrication pockets. The advantage of this type of
bushing is that it can be shortened to any desired length.
We also offer special designs and sizes according to your
specifications.
Physical properties (Guideline values)
| Specific gravity: 8,8 kg/dm3 | Coefficient of thermal expansion (20 – 300°C): 18,5 10-6/K |
| Thermal conductivity: 60 W/mK | Modulus of elasticity (20°C): 115 kN/mm2 |
Strength properties (Guideline values)
| Hardness: 125 HB | Tensile strength Rm; 470 N/mm2 |
| 0,2%-Yield point Rpp0,2: 300 N/mm2 | Elongation at fracture A: 40 % |
wrapped bronze bushings – Material description
A tin bronze with excellent sliding properties. The material is
particularly suitable when high wear resistance, corrosion resistance and fatigue strength are
required.
Due to the thin-walled construction of rolled bushings, they can
absorb very high specific forces. These may be higher than for the relatively thick-walled turned
bushings. Very high loads are possible, especially with swing bronze Bushingss
(oscillating motion).
| Material designation: CuSn8P DIN ISO 4382-2 | Composition (Guideline values mass fraction): Cu 91,3%, Sn 8,5%, P 0,2% |
Installation tolerances
| Nominal dimension d1 | | Installation tolerance | |
| bigger than | till | Housing H7 | bronze Bushings inside-Ø after mounting into housing H7 (middle) |
| 10 | 18 | 0 / +0,018 | 0 / +0,043 |
| 18 | 30 | 0 / +0,021 | 0 / +0,052 |
| 30 | 50 | 0 / +0,025 | 0 / +0,062 |
| 50 | 80 | 0 / +0,030 | 0 / +0,074 |
| 80 | 120 | 0 / +0,035 | 0 / +0,087 |
| 120 | 180 | 0 / +0,040 | 0 / +0,100 |
| 180 | 250 | 0 / +0,046 | 0 / +0,115 |
| 250 | 305 | 0 / +0,052 | 0 / +0,130 |
Check according to DIN 1494/ISO 3547 part 2
Flange diameter [d3] is defined in accordance with DIN ISO 2768
with rough
Width tolerance for cylindrical and flanged bronze Bushings
Width [b1] till outside diameters [d2] 100 mm: ±0,25 mm
Width [b1] bigger than outside diameters [d2] 100 mm: ±0,5 mm
Industrial plain bearings
Flange Slide bearing with hole pattern
Slide bearings with hole pattern LD Slide bearings with hole
pattern (LD = long-term lubrication with the depot) are suitable
for all types of grease. Bushings with lubrication indents ST can
easily be replaced by slide bearings with hole pattern LD.
Advantages: Significantly larger grease depot compared to
bushings with grooves or lubrication indents Extension of the
running time and the relubrication interval compared to ST bushings
Collection of dirt and wear particles in the lubrication holes
Advantages:
- fully recyclable
- cheaper than machined bronze Bushingss
- minimal space requirement
- weight reduction compared with machined bronze Bushingss or rolling
bronze Bushingss
- high load capacity, therefore particularly suitable for swing
bronze Bushingss
- grooves are stamped
- grease deposits for long-term lubrication possible
Instructions for use
High load capacity bronze with very good thermal stability, very
good corrosion resistance, wear resistant. Hardened shafts are
necessary at high loads.
Use: Spherical plain bronze Bushings under shock and impact loads,
bronze Bushings in hydraulic cylinders, bronze Bushings in the jibs
of excavator joints and in agricultural machinery.
For flanged bushings:
- radial and axial forces are absorbed by a bushing
- instead of thrust washer and cylindrical bushing, only one bronze
Bushings element
- high dimensional stability; fixing operation omitted, e.g. for
thrust washers
Slide bearings with plain sliding surfaces Plain slide bearings are
used in slide bearing applications where adequate lubrication is
guaranteed.
Application : | hoisting, mining machinery,
forest machinery, agricultural machinery etc. |
Material: | CuSn8P |
Density: | 8.8g/cm3 |
Max Dynamic Load: | 100N/mm² |
Max Linear Velocity(Grease): | 2m/s |
Max PV Value Grease : | 2.8N/mm²·m/s |
Pressure Strength | >460N/mm² |
Yield Strength N/mm2 | >280N/mm2 |
Hardness: | 90-150 |
Mating Axis | Hardness ≥50, Roughness 0.4-1.0 |
Working Temperature | -40~+150ºC |
Friction Coefficient | 0.06~0.15 |
Linear Expansion Coefficient | 18.5×10-6/K |
coefficient of heat conduction | 58W/m·K |
The combination of ever-increasing power density and energy
efficiency, combined with ever-increasing demands on service life
and cost-effectiveness, lead to ever-higher requirements for components and production. By combining specially developed and manufactured high-performance materials with the most advanced manufacturing technologies for both turned
and rolled plain bearings, bronze plain bearings are ideally suited
to the current and future requirements of construction and
agricultural machinery and the hydraulic industry.
Thin-walled slide bearings
bronze bearing is made of bronze with oil holes evenly distributed
on it. When assembling it, the bearing should be lubricated with
grease before both ends of the bearing is assembled with
seals.FB092 has the advantages of abundant oil storage,
easy-to-assemble or easy to be machined, etc. It can substitute
bushings made by complete copper material, in addition, it suits
conditions of middle load and low speed including conveying
machine. hoisting machine, windlass, aligning machine, etc.
Base material | CuSn8P0.3 or CuSn6.5P0.1 |
Hardness | HB90~120 | Temperature limit | -100℃~200℃ |
Load capacity | 60N/mm² | Speed limit | 2.5m/s |
Installation tolerances
Nominal dimension d1 |
| Installation tolerance |
|
|---|
bigger than | till | Housing H7 | Bearing inside-Ø after mounting into housing H7 (middle) |
10 | 18 | 0 / +0,018 | 0 / +0,043 |
18 | 30 | 0 / +0,021 | 0 / +0,052 |
30 | 50 | 0 / +0,025 | 0 / +0,062 |
50 | 80 | 0 / +0,030 | 0 / +0,074 |
80 | 120 | 0 / +0,035 | 0 / +0,087 |
120 | 180 | 0 / +0,040 | 0 / +0,100 |
180 | 250 | 0 / +0,046 | 0 / +0,115 |
250 | 305 | 0 / +0,052 | 0 / +0,130 |
Cylindrical bronze Bushings with lubrication indents ST
Cylindrical bronze Bushings with hole pattern LD
Cylindrical bronze Bushings with seals LDD
Outside and inside chamfering
s* | f1 | f2 |
1 | 0,6 ± 0,4 | max. 0,4** |
1,5 | 0,6 ± 0,4 | 0,4 ± 0,3** |
2 | 1,2 ± 0,4 | 0,4 ± 0,3 |
2,5 | 1,8 ± 0,6 | 0,6 ± 0,4 |
* s = b2 = (d2 – d1) / 2
** optional rounded corners
Flanged bronze Bushings with lubrication indents ST
Flanged bronze Bushings with hole pattern LD
Bronze Bushings with lubrication indents
Bushings with lubrication notches are sliding elements that have
proven themselves for many years. The lubrication depressions
already integrated in the belts are evenly distributed over the
entire running surface. They are filled with grease before the
shaft is assembled and ensure an even grease film over the entire
bearing.
An advantage of the bushes with lubrication pits is that they can be shortened to any desired width without causing any
disadvantage to the lubrication pits.
Bronze Bushings with seals
As opposed to the known plain bronze Bushings designs, in which
bushing and seal have to be installed separately, it is also
possible to obtain bushing and seal as a complete part.
The bronze Bushings with seal has the following advantages:
- the running time is significantly extended:
– optimal lubrication as the bronze Bushings is filled first before
the grease escapes through the seal
– protection against moisture ingress and foreign bodies of all
kinds - minimum space requirements compared to the usual seals
- seals and plain bronze Bushings 100% recyclable
- only one complete part is ordered and assembled, no different parts
– and storage is simplified
Properties of the seal:
- very good flexibility over a wide temperature range in combination
with maximum sealing effect with high abrasion resistance
- no shrinkage of the sealing lip in the shaft
- linear support even under load and edge pressure
- excellent resistance to greases, oils and hydraulic fluids
- high resistance to UV light and aging of the material
Lubrication
It is not just the bushing and the shaft that are important in the
tribological system; lubrication and the environment (for example,
air, gas, salt water, dust, etc.) are equally important. The
environment is generally not controllable, unlike lubrication.
Lubrication not only improves the sliding properties; further
advantages are also achieved:
- long service life
- corrosion protection of shaft
- seal against dust and dirt
- low friction losses
Friction is caused by the interaction of two bodies under load and
movement. To reduce friction and wear, the lubricant performs an
extremely important function: it separates the metallic surfaces of
the bushing and shaft.
Installation and lubrication of bronze Bushingss with seals
1. Pressing in the bronze Bushings
The bushing is pressed in with mounted seals. A shoulder mandrel
with free rotation for the sealing lip between the guide shaft and
the shoulder is recommended to ensure error-free installation. Free
rotation is necessary so that the seal is not damaged during
pressing. The shoulder mandrel should have a leadin chamfer of at
least 3 mm x 15°.
However, the bushing can also be pressed in with a plate. Here, the
seal is pressed elastically towards the middle of the bushing and
goes back to its original position after the press-fitting process.
2. Mounting the shaft
When mounting the shaft, it must be taken into account that the
inner diameter of the sealing lip has a smaller diameter than the
shaft. Therefore, to allow easy insertion the shaft should have a
chamfer of at least 3 mm x 15°. Mounting is further simplified if
the shaft is lightly greased before insertion.
3. Lubricating the bronze Bushings
Without a seal, complete filling of the bronze Bushings via the
grease nipple is not guaranteed. In the unstressed area, grease
quickly leaks out, whereas the stressed area remains unfilled. The
seal causes throttle pressure to be built up in the bronze Bushings
during lubrication, whereby only after complete filling of the
bushing does the grease escape through the seal. If the bushing
cannot be lubricated via a grease nipple, make sure the bushing is
well lubricated before mounting the shaft.
bronze Bushings clearance and shaft tolerance
| Situation: | bronze Bushings clearance: |
| Lubrication condition: grease | >0,1 mm |
| Lubrication condition: oil | small |
| Load: big | small |
| Load: small | big |
| Movement: slow | small |
| Movement: oscillating | small |
| Movement: fast | big |
The required play of the central bronze bushings depends on the
supplied lubrication, the load and the sliding speed.
The table is intended to help you select the required spacing. The
curve is designed for general mechanical engineering. With bronze
bushings in rough operation, the curve upwards can easily be
exceeded.
The tolerance of the shaft must be set according to the required
minimum play. The tolerance class should be IT6 for high
requirements and IT7 or IT8 in normal cases.
If standard bushings with inside diameter tolerance H9 are used, it
is recommended to tolerate the shaft with e or f. For shafts with h
tolerance, provided that the bronze Bushings load is not too high
the housing bore can be extended from H7 to F7. The bushing
attaches to the respective housing and the bushing bore is slightly
larger. This means that bronze Bushings clearances that are too
small can be avoided.
Packing & Shipping
1. Inner packing
Small products: 100pcs-200pcs per sealed plastic bag.
For bigger products: 2pcs-10pcs per plastic film roller (depends on
the product size
2. Outer Packing&Shipment Packing
carton (depends on the product size)
wood case or pallet, Keep safe for transportation.
