010.30.630 Slewing Bearing Technical Specifications Explained
The first step to selecting the right slewing ring for a rotating platform is knowing precise technical data. This tutorial lays out everything engineers need to know about the 010.30.630 slewing bearing. This type is a single-row four-point contact ball slewing bearing without gear teeth. It is suitable for the mid-diameter range used for small cranes, rotary tables, welding manipulators, and construction machines where compact envelope dimensions are as important as a reliable load distribution. This bearing comes from Heng Guan Bearing, a manufacturer located in Luoyang, China, the ancient "Bearing Town". Heng Guan Bearing makes this bearing to consistent 010.30.630 requirements. The buyer may provide a 010.30.630 quotation to compare a few or many 010.30.630 supplier factory choices in the worldwide market.

What Are the Key Parameters of 010.30.630 Slewing Bearing?
The slewing bearing 010.30.630 is a gearless, single-row four-point contact ball design, supporting combined axial, radial, and tilting moment loads in a compact ring and is in accordance with the naming system of the standard “010” series. The "630" part of the name indicates the raceway center diameter in millimetres, while the "30" indicates the diameter of the steel balls. These are both important identifiers for cross-referencing replacement units from European manufacturers. This type is manufactured by Heng Guan Bearing in precision grades P0, P6, P5 and P4 so that purchasers may pick the degree of accuracy that best matches the rotational tolerance requirements of their application.
The 010.30.630 specs, with an outer diameter of 732 mm and an inner diameter of 528 mm, put this bearing firmly in the mid-diameter class, giving it a viable fit for medium-duty rotary tables, 20-ton-class excavators, truck-mounted cranes and automated welding positioners. The gearless design is suitable for situations where external hydraulic motors, belt drives, or pinion systems are required, but not an inbuilt gear ring.
| Parameter | Value |
|---|---|
| Bearing Model | 010.30.630 |
| Structure Type | Single-row four-point contact ball, no gear |
| Outer Diameter (Da) | 732 mm |
| Inner Diameter (Di) | 528 mm |
| Total Height (H) | 80 mm |
| Raceway Center Diameter | 630 mm |
| Precision Grades | P0, P6, P5, P4 |
010.30.630 Slewing Bearing Load Capacity, Dimensions, and Material Analysis
The 010.30.630 supplier factory load capacity is based on the raceway hardness, the ball diameter, and the cross section of the rings. Heng Guan Bearing produces these components to ensure the axial, radial, and moment loads are spread uniformly along the four-point contact geometry. The static load rating of the bearing is 1,870 kN. It is the fundamental dynamic load rating of the bearing to withstand multiple rotation cycles under mixed loading circumstances characteristic of lifting equipment and rotating platforms. The steel balls with a diameter of 30 mm are made from GCr15 high-carbon chromium bearing steel. The ball contacts the raceway at four spots so that the bearing may change its direction without any clearance shift.
Heng Guan Bearing is made of forged 50Mn or 42CrMo alloy steel inner and outer rings. The inner and outer rings are induction hardened to 55-62 HRC for surface wear resistance and a robust, shock-absorbing core. This heat treatment method is directly applicable to prolong service life in the cyclic stress patterns typical of crane slewing and excavator rotation. The first thing to do before buying is to double-check the complete specifications of the 010.30.630 below to the mounting envelope of your machine; any reputable 010.30.630 supplier manufacturer should be able to provide you with a verified dimensional drawing instead of relying on generic catalogue values.
| Parameter | Value |
|---|---|
| Ball Diameter | 30 mm |
| Ball Material | GCr15 bearing steel |
| Basic Dynamic Load Rating (Coa) | 1,870 kN |
| Bolt Circle Diameter — Outer (D1) | 696 mm |
| Bolt Circle Diameter — Inner (D2) | 564 mm |
| Bolt Holes (Outer / Inner) | 24 / 24 |
| Bolt Hole Diameter | 18 mm (M16 bolts) |
| Ring Material | 50Mn / 42CrMo forged steel |
| Raceway Hardness | 55–62 HRC |
| Seal Type | Double-sided nitrile rubber seal |
| Approximate Weight | 110 kg |
For certified dimensional drawings, precision grade selection, or bulk 010.30.630 supplier factory pricing, reach the Heng Guan Bearing engineering team directly at mia@hgb-bearing.com — our specialists typically respond within one business day with documentation tailored to your project.
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010.30.630 Slewing Bearing Installation Requirements and Performance Factors
Correct installation directly determines how well a 010.30.630 slewing bearing performs over its service life, starting with a flat, rigid mounting surface that prevents ring distortion once bolts are torqued to specification. Heng Guan Bearing recommends verifying bolt-circle alignment against both the outer (696 mm) and inner (564 mm) bolt-hole patterns before final tightening, since even minor misalignment can concentrate preload unevenly and accelerate raceway wear regardless of how precisely the 010.30.630 specifications were met during manufacturing. Applying lithium-based grease to the raceway before the first rotation cycle ensures immediate lubricant film formation, while double-sided nitrile rubber seals retain grease and block contaminant ingress in dusty construction environments.
Performance factors such as rotational speed, ambient temperature range, and dust exposure should also guide seal selection and relubrication intervals. Buyers sourcing from any 010.30.630 supplier factory should request installation torque values specific to their bolt grade (typically M16 grade 10.9) and mounting configuration, along with a recommended maintenance schedule.
| Installation Factor | Recommendation |
|---|---|
| Bolt Specification | M16, grade 10.9 |
| Bolt Hole Diameter | 18 mm |
| Outer Bolt Circle (D1) | 696 mm — 24 holes |
| Inner Bolt Circle (D2) | 564 mm — 24 holes |
| Mounting Surface Flatness | ≤0.2 mm per 1,000 mm |
| Initial Lubrication | Lithium-based grease, applied before first rotation |
| Relubrication Interval | Every 50–100 operating hours (typical) |
Why Choose Certified 010.30.630 Slewing Bearing Manufacturers for Reliable Supply?
Purchasing a 010.30.630 slewing bearing from a licensed, experienced manufacturer guarantees that the consumer is protected against inconsistent raceway hardness and dimensional drift that uncertified, cheaper vendors may miss. Heng Guan Bearing has bearing designers with rich expertise and has sophisticated CNC vertical lathes, gear hobbing machines, and coordinate measurement machines (CMM) to check each batch to the recorded 010.30.630 standard before shipping. Ultrasonic fault identification, dimensional tolerance verification and rotational testing are carried out on each bearing to guarantee complete traceability from raw material procurement to final delivery.
Working with an established 010.30.630 supplier factory also makes after-sales support easier, as certified manufacturers often provide technical assistance, special modifications like marine-grade anti-corrosion coatings, and quicker replacement lead times. Buyers who pay attention to ISO 9001 certification and verifiable quality documentation, above price alone, always save long-term maintenance expenses and unscheduled downtime. Many equipment operators have found this the hard way after choosing the lowest bidder.
Conclusion
Heng Guan Bearing delivers 010.30.630 slewing bearing solutions built on precise 010.30.630 specifications, rigorous quality control, and decades of manufacturing expertise. From certified dimensional drawings to custom precision grades and rapid delivery, our team supports your project from specification through after-sales service. Contact Us today to request drawings, pricing, or technical support.
FAQ
Q: What type of bearing is the 010.30.630 slewing bearing?
A: It is a single-row four-point contact ball slewing bearing without gear teeth, designed to carry combined axial, radial, and tilting moment loads within one compact ring. The gearless configuration suits externally driven applications such as hydraulic motor or pinion-driven rotary systems.
Q: What are the main dimensions of the 010.30.630 specifications?
A: The outer diameter is 732 mm, the inner diameter is 528 mm, and the total height is 80 mm. The raceway center diameter is 630 mm, with 24 bolt holes on each of the outer (696 mm) and inner (564 mm) bolt circles using M16 bolts.
Q: What materials are used in the 010.30.630 slewing bearing?
A: The inner and outer rings are forged from 50Mn or 42CrMo alloy steel with induction-hardened raceways at 55–62 HRC. The steel balls are made from GCr15 high-carbon chromium bearing steel for high load capacity and wear resistance.
Q: What is the basic dynamic load rating of this bearing?
A: The basic dynamic load rating (Coa) is 1,870 kN, making it suitable for medium-duty applications including 20-ton-class excavators, small truck cranes, rotary tables, and welding manipulators.
Q: How can I request certified specifications from a 010.30.630 supplier factory?
A: Contact Heng Guan Bearing directly for certified dimensional drawings, precision grade selection, load analysis, and technical support tailored to your application. Our engineering team provides CAD drawings (PDF/DWG) and 3D models (STEP/IGES) upon order confirmation.
Get Your 010.30.630 Slewing Bearing Quote from Heng Guan Bearing
Ready to source a reliable 010.30.630 slewing bearing from a certified 010.30.630 supplier factory? Heng Guan Bearing offers certified 010.30.630 specifications, custom precision grades, marine-grade coating options, and responsive engineering support. Contact us today at mia@hgb-bearing.com for drawings, pricing, and fast, dependable supply.
References
1. International Organization for Standardization. (2007). ISO 281:2007 Rolling bearings — Dynamic load ratings and rating life. ISO.
2. Harris, T. A., & Kotzalas, M. N. (2007). Advanced Concepts of Bearing Technology: Rolling Bearing Analysis (5th ed.). CRC Press.
3. Deutsches Institut für Normung. DIN 616 Rolling bearings — Boundary dimensions — General plan. DIN.
4. Budynas, R. G., & Nisbett, J. K. (2008). Shigley’s Mechanical Engineering Design (8th ed.). McGraw-Hill.
5. Brändlein, J., Eschmann, P., Hasbargen, L., & Weigand, K. (1999). Ball and Roller Bearings: Theory, Design and Application. John Wiley & Sons Ltd.
6. International Organization for Standardization. (2015). ISO 9001:2015 Quality Management Systems — Requirements. ISO.





