Concrete Mixer Truck Parts Bearing 30312-A

1). Key Dimensions:

- Inner Diameter (d): 60 mm

- Outer Diameter (D): 130 mm

- Total Width (T): 33.5 mm

- Cone Width (B): 31 mm

- Cup Width (C): 26 mm

- Dynamic Load Rating (Cr): 174 kN

- Static Load Rating (C0r): 202 kN

- Limiting Speed (nG): 5,700 rpm

- Reference Speed: approx. 4,050 rpm

- Weight: approx. 2.0 kg

Precision: Standard P0 (higher precision grades available)

Operating Temperature: -30°C to +120°C

2).Superior Load Capacity

– Optimized roller and raceway geometry provides line contact, delivering significantly higher radial and axial load ratings compared to ball bearings of the same size.

-3).High Rigidity & Precise Axial Guidance

– Allows accurate adjustment of axial clearance for enhanced system stiffness.

1).Designing and manufacturing of non-standard equipment;

2).Professional technical training and guidance on site according to the contract;

3).Supply accessories at any time;

4). Other special technical service according to client's requirements. Quality assurance

1). Checking raw material before producing.

2). Checking one by one before the assembling

3). Checking one by one during the production

4). Have 100% inspection before the delivery.

1).2010 Zhongyi machinery Co.,Ltd. Founded, with main products of spare parts for concrete pumps and concrete mixer trucks.
2).2011 Zhongyi machinery started to cooperate with ACM located in Italy, our products entered EU market.
3)2016 start cooperating with TRI who is famous distributor in middle East countries, we provide the all kind of parts. And meanwhile we started cooperated with Zoomlion customer in South east Asia.
4).2019 we purchased one factory for manufacture the casting products, and began to cooperate with the biggest pump part distributor in UAE.
5).2023 our company has passed the ISO quality system registration, and has obtained ISO 9001:2008 certificate.
6).2024 our set up our oversea branches in Oman Muscat.

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