Dongguan Lihao Bearing Co., Ltd
Dongguan Lihao Bearing Co., Ltd (BLH Bearing), established in 2005, is located in the global manufacturing hub of Dongguan, China. We specialize in stainless steel bearings, deep groove ball bearings, industrial plastic bearings, ceramic bearings, precision special non-standard bearings, and rubber-coated sliding wheel pulleys, all featuring high performance, low noise, and corrosion resistance.
-
![Plastic Nylon Stainless Steel Bearing Seat]()
Plastic Nylon Stainless Steel Bearing SeatThis series of bearings features dust caps on the bore ends, effectively preventing dust and foreign matter from entering and reducing maintenance costs. The cap material can be selected based on the -
![IP54 with Composite Bearing Units]()
IP54 with Composite Bearing UnitsThese bearings are completely custom-made and can be customized based on the user's operating environment, designed speed and load conditions. They utilize high-end composite materials, significantly
why choose us
Excellent Testing Equipment
BLH Bearing has its own independent laboratory, a complete R&D system, and a full range of testing equipment.
The Most Competitive Prices
With 60 sets of automated production lines, BLH Bearing can easily meet large-scale demand and provide the most competitive price guarantee.
One-Stop Solution
We offer one-stop solutions for global transmission equipment needs.
Our Service
Our professional bearing R&D capabilities, manufacturing strength, and 24/7 technical and after-sales service ensure that your transmission business is fully supported — with complete peace of mind.
Plastic bearing housings are usually made from polymer-based materials and are known for their strong corrosion resistance. They do not chemically react when exposed to water or chemicals. Plastic bearing housings are typically much lighter than metal housings, making them popular in applications where weight is a concern. However, plastic may not be as durable as steel under high mechanical loads.
Bearing seat material: SUS304, SUS201
Bearing material: SUS420, SUS440, SUS304
End cap material: Nylon cap or SUS304
Grease nipple material: SUS304 stainless steel
Grease: Food-grade grease
Operating temperature: -20°C to 120°C
|
MODEL ON. |
Shaft d(mm) |
DIMENSIONS(mm) |
Bolt size (mm) |
Weight (kg) |
|||||||||||
|
a |
p |
e |
i |
S |
j |
k |
g |
f |
Z |
Bi |
n |
||||
|
UCWFC201 |
12 |
90 |
70 |
49.5 |
9 |
10 |
4 |
7 |
19.5 |
55 |
28.3 |
27.4 |
11.5 |
8 |
0.64 |
|
UCWFC202 |
15 |
90 |
70 |
49.5 |
9 |
10 |
4 |
7 |
19.5 |
55 |
28.3 |
27.4 |
11.5 |
8 |
0.60 |
|
UCWFC203 |
17 |
90 |
70 |
49.5 |
9 |
10 |
4 |
7 |
19.5 |
55 |
28.3 |
27.4 |
11.5 |
8 |
0.58 |
|
UCFC204 |
20 |
99 |
78 |
55.1 |
10 |
12 |
5 |
7 |
21 |
62 |
28.3 |
31 |
12.7 |
10 |
0.60 |
|
UCFC205 |
25 |
114 |
90 |
63.6 |
10 |
12 |
6 |
7 |
21 |
70 |
28.7 |
34.1 |
14.3 |
10 |
0.84 |
|
UCFC206 |
30 |
124 |
100 |
70.7 |
10 |
12 |
8 |
8 |
22 |
80 |
32.2 |
38.1 |
15.9 |
10 |
1.10 |
|
UCFC207 |
35 |
134 |
110 |
77.8 |
11 |
14 |
8 |
9 |
24 |
90 |
36.4 |
42.6 |
17.5 |
12 |
1.40 |
|
UCFC208 |
40 |
144 |
120 |
84.8 |
11 |
14 |
10 |
9 |
24 |
100 |
41.2 |
49.2 |
19 |
12 |
1.74 |
|
UCFC209 |
45 |
159 |
132 |
93.3 |
10 |
16 |
12 |
14 |
24 |
105 |
40.2 |
49.2 |
19 |
14 |
2.30 |
|
UCFC210 |
50 |
164 |
138 |
97.6 |
10 |
16 |
12 |
14 |
25 |
110 |
42.6 |
51.6 |
19 |
14 |
2.60 |
|
UCFC211 |
55 |
186 |
150 |
106.1 |
13 |
12 |
15 |
28 |
125 |
48.4 |
55.6 |
22.2 |
16 |
3.54 |
|
|
UCFC212 |
60 |
194 |
160 |
113.1 |
17 |
19 |
12 |
15 |
33 |
135 |
56.7 |
65.1 |
25.4 |
16 |
4.40 |
|
UCFC213 |
65 |
204 |
170 |
120.2 |
16 |
19 |
14 |
15 |
34 |
145 |
56.7 |
65.1 |
25.4 |
16 |
5.00 |
|
UCFC214 |
70 |
214 |
177 |
125.1 |
17 |
19 |
14 |
18 |
36 |
150 |
61.4 |
74.6 |
30.2 |
16 |
6.02 |
|
UCFC215 |
75 |
218 |
184 |
130.1 |
18 |
19 |
16 |
18 |
38 |
160 |
62.5 |
77.8 |
33.3 |
18 |
6.56 |
|
UCFC216 |
80 |
238 |
200 |
141.4 |
18 |
23 |
16 |
18 |
38 |
170 |
67.3 |
82.6 |
33.3 |
20 |
7.90 |
|
UCFC217 |
85 |
248 |
208 |
147.1 |
18 |
23 |
18 |
20 |
40 |
180 |
69.6 |
85.7 |
34.1 |
20 |
9.80 |
|
UCFC218 |
90 |
263 |
220 |
155.5 |
22 |
23 |
18 |
20 |
44 |
190 |
78.3 |
96 |
39.7 |
20 |
11.04 |
Minimal maintenance
Plastic bearings can replace bronze, metal-backed, and custom injection-molded bearings in almost any application. Their resistance to dirt, dust, and chemicals make plastic bearings a ‘fit-and-forget’ solution.
Cost savings
Plastic bearings can typically reduce costs by up to 25 percent. With high wear resistance and a low coefficient of friction, plastic bearings can often replace more expensive alternatives in a variety of applications.
No messy lubricants
Self-lubricating bearings transfer lubricant onto the shaft to help lower the coefficient of friction and are impervious to dirt, dust, or other contaminants.
Consistent coefficient-of-friction (CoF)
Plastic bearings are designed to maintain a consistently low CoF over the lifetime of the bearing. Compared to metal-backed bearings, which can become scratched and increase the CoF, plastic bearings often last longer.
Corrosion and chemical resistance
Plastic bearings can be used in wash-down applications, saltwater, and harsh chemicals without compromising performance. Water can even be considered a lubricant for plastic bearings.
》Single-row deep grove plastic ball bearings
》Thrust plastic ball bearings
》Angular contact plastic ball bearings
》Self-aligning plastic ball bearings
》Miniature plastic ball earings
Common materials used in plastic bearings
Understanding material properties is essential when selecting a plastic bearing. Typical material families and their attributes include:
PTFE (Polytetrafluoroethylene): Extremely low friction and excellent chemical resistance. Often used in composite formulations or as a solid-lubricant phase in a polymer matrix. Best for low-friction sliding under moderate loads; not typically used alone where structural stiffness is required.
POM / Acetal (Polyoxymethylene): Good stiffness, strength, dimensional stability, and machinability. Widely used for cages, rings, and medium-duty bearing components.
Nylon (Polyamide): Tough, impact-resistant, and low-cost; used in cages, housings, and some wear components. Absorbs moisture which may affect dimensions.
UHMW (Ultra-High-Molecular-Weight Polyethylene): Very tough, abrasion-resistant, and low-friction; performs well in impact and abrasive environments.
PEEK (Polyether Ether Ketone): High-performance thermoplastic with excellent mechanical strength, temperature resistance, and chemical resistance. Used in demanding applications where temperatures or loads are higher.
Filled/Composite Polymers: Thermoplastics or thermosets reinforced with glass fiber, carbon fiber, or solid lubricants (graphite, PTFE). These blends are tailored to improve load capacity, wear resistance, and thermal behavior.
Metal-backed plastics: Thin polymer layers molded or bonded onto a metal backing combine the dimensional stability and load distribution of metal with the sliding properties and corrosion resistance of polymer.
How plastic bearings are manufactured
Plastic bearings are manufactured by several processes, chosen based on part geometry, tolerances, volume, and cost:
Injection molding
The most common process for high-volume plain bushings, flanged bushings, and bearing housings. Enables complex shapes and integrated mounting features.
01
Machining
Used for prototypes, low-volume runs, or when tight tolerances or specific finishes are required. Machined polymer bushings are common for custom parts.
02
Overmolding / Bonding
Polymer layers are molded onto metal backings to produce metal-backed bearings that combine strength with a polymer sliding surface.
03
Sintering / Compression molding
Used for certain composite materials or specialty polymer blends.
04
Assembly
For plastic ball bearings, cages or rings are molded then assembled with metal or ceramic balls where needed.
05
Limitations and design considerations
Plastic bearings are not a drop-in replacement for metal bearings in every case. Key limitations:
Load capacity & temperature: Plastics generally have lower maximum load capacities and lower continuous operating temperatures compared to hardened steel bearings. High-load, high-temperature, or high-speed applications usually still require metal or hybrid solutions.
Thermal expansion: Polymers expand more with temperature than metals; clearances and fits must be designed accordingly.
Creep and long-term deformation: Under sustained high loads, some plastics may creep. Reinforced polymers and metal-backed designs mitigate creep.
Abrasive wear: Very abrasive environments can accelerate polymer wear; material selection and sealing are essential.
Precision and high-speed limitations: For very high precision and high RPM applications, metal rolling bearings are often preferable.
Our Honor
FAQ
As one of the leading plastic bearing housing manufacturers and suppliers in China, we warmly welcome you to wholesale bulk plastic bearing housing for sale here from our factory. All customized bearings are with high quality and competitive price.
Sealed stainless steel bearing units, 4 hole square flange bearing unit SF, plastic bearing housing
