Pillow Blocks Oilless Bronze Graphite Plugged Bushings are
high-performance components designed to provide smooth and reliable
operation in various industrial applications.
Constructed from bronze, these bushings exhibit excellent strength
and durability, making them suitable for high-load and high-speed
applications. The oilless design eliminates the need for
lubrication, reducing maintenance requirements and operational
costs.
The graphite-plugged feature of these bushings ensures effective
lubrication and wear resistance, extending the service life of the
bushings. This also results in reduced friction and improved
efficiency of the rotating system.
Pillow Blocks Oilless Bronze Graphite Plugged Bushings are commonly
used in machinery, pumps, motors, and other rotating equipment.
Their precision-fitted design ensures accurate alignment and
stability, reducing vibration and noise.
With their robust construction and high-quality materials, these
bushings offer reliable performance in even the most challenging
industrial environments. Wh used in indoor or outdoor applications,
they provide a long-lasting and cost-effective solution for smooth
and efficient rotation.
Rigid Split Pillow Blocks for shafts from 1-5/16" to 12" in
diameter| VIIPLUS Self-lubricating Bearings
Pillow Block Bearings & Inserts bronze bearings
Split Plummer block housings are popular bearing housings with inch
dimensions, developed as the first choice in terms of design,
quality, and economy.
The housings of the split pillow block and associated bearings form
bearing arrangement units that can be adapted, through the
appropriate selection of accessories, to a wide range of
applications.
The housings are designed specifically for inch-sized central shaft
heights.
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VIIPLUS is a professional manufacturer of plain bearings and wear
plates and has grown rapidly to a point where it is now possible to
supply all types of plain bearings. Standard catalog sizes, special
sizes and designs can be produced at competitive prices and
according to high quality standards. VIIPLUS serves both the
national and international markets. VIIPLUS intends to remain at
the forefront of this market.
VIIPLUS specialized in research and development, production and
sale of self-lubricating bearings. The main Rigid Split Pillow Blocks products are metallic polymer composite bearings, bimetallic
composite bearings, bronze coated bearings, self-lubricating
monometallic bearings and other bearings.
Feature
Split pillow block bearing housing and/or bearing is split into two
pieces and bolted tog, facilitating easier maintenance or bearing
replacement for worn or damaged bearings or shafts.
Rigid Split Pillow Blocks Service requirements with side loading or angular pressures
require ball bearings. These bearings allow you to accommodate
loads within 30 ° on each side of the grease groove. They have all
the features of regular split bearings, as well as the rigid style.
These bearings are only available with a bronze coating material.
Material
The Four-Bolt Base is made of Cast Iron with 2 or 4 bolt mounting
locations.
Cast iron belongs to the family of materials whose main component
is iron, with important trace amounts of carbon and silicon. Cast
iron is a natural composite material whose properties are
determined by its microstructure — stable and metastable phases
formed during solidification or subsequent heat treatment. The main
microstructural components of cast irons are chemical and
morphological forms taken by carbon, and a continuous metal matrix
in which carbon and / or carbide are dispersed.
Drawing
4 BOLT BASE - 2 BOLT CAP
Shaft
Size | Part Number | Wt. | A | B | C | D | E | F-Dia.
Bolt | G | H | K | L | M | Pipe
Tap |
| Bronze |
|
| 10 | 1 3⁄4 | 8 1⁄4 | 3 1⁄2 | 7⁄8 | 6 1⁄2 | 1⁄2 | 1 3⁄4 | 3 7⁄16 | 4 7⁄16 | 4 | 3⁄4 | 1⁄4 |
|
| 13 | 1 7⁄8 | 8 1⁄2 | 3 1⁄2 | 1 | 6 3⁄4 | 1⁄2 | 1 3⁄4 | 3 3⁄4 | 4 7⁄8 | 4 1⁄2 | 3⁄4 | 1⁄4 |
|
| 18 | 2 1⁄8 | 10 1⁄4 | 4 | 1 1⁄8 | 8 | 5⁄8 | 2 | 4 3⁄16 | 5 5⁄16 | 5 | 1 | 1⁄4 |
|
| 21 | 2 1⁄4 | 10 1⁄2 | 4 1⁄4 | 1 1⁄4 | 8 1⁄4 | 5⁄8 | 2 1⁄4 | 4 1⁄2 | 5 7⁄8 | 5 1⁄2 | 1 | 1⁄4 |
|
| 26 | 2 1⁄2 | 11 | 4 1⁄2 | 1 3⁄8 | 8 3⁄4 | 5⁄8 | 2 1⁄2 | 4 7⁄8 | 6 3⁄4 | 6 | 1 | 3⁄8 |
4 BOLT BASE - 4 BOLT CAP
Shaft
Size | Part Number | Wt. | A | B | C | D | E | F-Dia.
Bolt | G | H | K | L | M | Pipe
Tap |
| Bronze |
|
| 43 | 3 1⁄4 | 13 | 5 | 1 3⁄8 | 10 1⁄2 | 3⁄4 | 2 3⁄4 | 6 1⁄4 | 8 1⁄8 | 7 | 1 1⁄4 | 1⁄2 |
|
| 62 | 3 1⁄2 | 14 3⁄4 | 5 1⁄2 | 1 1⁄2 | 12 | 3⁄4 | 3 | 6 13⁄16 | 9 3⁄8 | 8 | 1 3⁄8 | 1⁄2 |
|
| 86 | 4 1⁄8 | 16 1⁄2 | 6 1⁄4 | 1 3⁄4 | 13 1⁄2 | 7⁄8 | 3 1⁄2 | 7 7⁄8 | 10 3⁄8 | 9 | 1 1⁄2 | 1⁄2 |
|
| 116 | 4 1⁄2 | 18 | 7 | 1 7⁄8 | 15 | 7⁄8 | 4 | 8 9⁄16 | 11 1⁄4 | 10 | 1 5⁄8 | 1⁄2 |
|
| 166 | 5 | 19 1⁄4 | 7 3⁄4 | 2 | 15 3⁄4 | 1 | 4 1⁄2 | 9 3⁄8 | 12 1⁄4 | 11 | 1 3⁄4 | 1⁄2 |
|
| 198 | 5 1⁄2 | 20 1⁄2 | 8 1⁄2 | 2 1⁄8 | 16 1⁄2 | 1 1⁄8 | 5 | 10 1⁄4 | 13 3⁄4 | 12 | 1 7⁄8 | 1⁄2 |
Industries and Applications
heavy industrial operations:
·Power Generation (Coal)
·Mining/Aggregate/Cement
·Metal MillsPulp & Paper/Sawmills/Forestry/Water Treatment
·Food Processing
·Warehousing
·Movable Bridges/Structures
·Industrial Fans/Blowers
Shaft Securing Method
·Fixing screw - The bearings fixed with a fixing screw are fixed to
the shaft by a fixing screw, located on an inner ring, that is, the
bearings have fixing screws to secure the inner ring to a shaft.
·The locking collar bearings have a locknut to secure the inner ring
to the shaft.
·No bearing fixing method does not have provisions for fixing an
axle.
Use Note
This procedure is for the most common adjustment screw or collar
for the shaft locking device, using a fixed and expansion unit, but
the general guidelines apply to all bearing installations.
1. Check and clean the Shaft
First, check your shaft to make sure it is clean, round, straight,
free of burrs and nicks and that it is not undersized or oversized,
according to the manufacturer's specifications. Use fine sandpaper
or shiny tape to clean the tree of any rust. Then use a light coat
of oil to remove debris.
2. Put the bearings on the shaft
Use a hammer and a block of wood or a soft steel tube on the inner
ring when placing the bearing on the shaft if the bearing needs to
be knocked in place. Do NOT hit or exert pressure on the housing or
seals.
3. Lightly screw the housing to the mounting structure
Position the shaft in position by lightly screwing the housing to
the mounting structure. Bridge the slots in the housing mounting
bolts with heavy washers or heavy spring washers. This can help
prevent loosening.
4. Establish the final mounting position
Before fixing the bolts, establish your final mounting position by
aligning the bearings by hand or with a rubber mallet.
5. Securely screw the housing to the mounting structure
After proper alignment of the bearing, securely secure both units
to the mounting structure.
6. Make sure the shaft can move axially
Ensure that the shaft can move axially through the bearing bores to
confirm proper alignment. If this is not possible, loosen the
housings and align the shaft.
7.Tighten the two clamping screws of the collar
Tighten the two clamping screws of the collar, then turn the shaft
and tighten alternately to the torque values recommended by the
manufacturer. If a torque wrench is not available, tighten the
adjustment screws until a permanent torque is established with an
Allen wrench.
If an expansion unit is used, always lock the fixed bearing first.
Move the expansion bearing axially in the center of the housing.
Once centered, alternately tighten the set screws on the expansion
unit as on the stationary unit.
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