About Aluminum alloy bell housing (cut edge)
PK Series = Dongxu National Standard Bell-Shaped Hoods: Versatile, affordable, and widely available in stock.
Hydraulic Bell Housing (also known as a pump housing, coupling housing, or motor-pump coupling housing)
is a specialized protective housing used in hydraulic systems to connect the electric motor to the hydraulic pump. It features a built-in flexible coupling that ensures smooth power transmission from the motor to the hydraulic pump. As an essential standard component of complete hydraulic power units, Dongxu Hydraulics specializes in standard models compliant with national standards, offering thickened, durable designs with high coaxial precision.
Product size drawing
Type parameter list
| Model |
A (Minimum) |
A1 |
B |
B1 |
B2 |
L |
| PK200 |
35 |
135 |
130 |
165 |
200 |
110 |
| 80 |
| PK250 |
25 |
184 |
180 |
215 |
250 |
120 |
| 35 |
130 |
| 50 |
150 |
| 70 |
160 |
| 75 |
188 |
| PK300 |
80 |
230 |
230 |
265 |
300 |
150 |
| 80 |
166 |
| 70 |
182 |
| 100 |
192 |
| PK350 |
50 |
250 |
250 |
300 |
350 |
187 |
| 60 |
197 |
| 75 |
204 |
| 100 |
226 |
| 120 |
213 |
| PK400 |
80 |
300 |
300 |
350 |
400 |
205 |
| 80 |
222 |
| 100 |
244 |
| 150 |
310 |
| PK450 |
100 |
350 |
350 |
400 |
450 |
235 |
| 100 |
265 |
| 100 |
285 |
| 150 |
335 |
| PK550 |
50 |
450 |
450 |
500 |
550 |
265 |
| 125 |
295 |
| 150 |
348 |
| 150 |
388 |
| PK660 |
120 |
550 |
550 |
600 |
660 |
310 |
| 120 |
330 |
| 125 |
345 |
| PK800 |
165.1 |
685 |
680 |
740 |
800 |
335 |
Figure 1 Figure 2
Order description
| Model NO |
Height of the bell housing |
Oil pump port |
Oil pump installation center distance (side distance) |
Oil pump mounting holes |
Motor installation method |
| PK350 |
187 |
101.6 |
146 |
4×M12/90° |
W |
- L indicates:vertical installation motor end with 4 through holes and 4 threaded holes
- W indicates:horizontal installation motor end with 4 through holes
- 90°indicates:oil pump installation (see diagram 1)
- 45°indicates:oil pump installation (see diagram 2)
- Note:Oil pump models and parameters provided by the customer,supplier drawing confirmation is primary
Product description
- Used for connecting IEC standard motors and hydraulic oil pumps
- The bottom of the bell housing is not solid but reinforced
- Side vents for easy observation of machine operation
- Suitable for heavy loads
- Available for vertical and horizontal motors
- No vents, high tensile strength, large torque, high density
Applications
- Construction Machinery: Mini excavators, loaders, forklift hydraulic systems, aerial work platforms, lift platforms, truck-mounted crane hydraulic power units.
- Mining / Metallurgy / Heavy Industry: Mining drills, conveying equipment, auxiliary hydraulic systems for metallurgical rolling millsHigh pressure, high dust, heavy vibration → DX cast iron models.
- Marine / Waste Management / Logistics: Marine deck hydraulic units, hatch covers, waste collection vehicles, waste compaction stations, loading ramp hydraulic systems; humid and salt fog environments → DX aluminum alloy + anti-corrosion coating.
Packaging & Delivery
- Secure Industrial Protection: Each cooler is individually packaged in reinforced, shock-absorbent crating to protect the cooling core and fittings during transit.
- Global Fulfillment: Factory-direct dispatch with optimized logistics support to reach industrial hubs in Europe, North America, and Asia with minimal lead time.
- Documentation Ready: Provided with full technical and export documentation to ensure hassle-free customs clearance and installation.
Certification & Quality Assurance
- Global Standards: Manufactured under strict ISO9001, ISO14001, and ISO10012 quality management systems.
- Long-Term Reliability: Engineered for an operational lifespan of 10+ years, providing a foundation of stability for your heavy-duty machinery.
- Rigorous Integrity Testing: Every DC unit undergoes comprehensive pressure-testing to ensure leak-free operation and structural durability under load.
The MEISON Advantage
- Factory-Direct Expertise: "Factory-Direct Expertise. Professionally Curated." — 20+ years of manufacturing leadership in hydraulic components.
- Global Trusted Partner: Over 1,000,000 units sold to 6,000+ satisfied customers worldwide.
- Innovation & R&D: 60+ technical patents support our commitment to high-performance, precision-engineered hydraulic components.
- Cinematic Industrial Image: Our design focus on technical authority and professional aesthetics helps you build immediate, long-lasting trust with your B2B customers.
