Manufactured by CHG Bearing, the HG-Q035 is a precision Four-Point Contact Ball Slewing Bearings. Key dimensional parameters include a 720 mm bore diameter, a 900 mm outer diameter, and a 70 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.

HG-Q035 - Four-Point Contact Ball Slewing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HG-Q035 |
| Brand | CHG® |
| Gear Type | Internal Gear |
| Characteristics | |
| Bearing Type | Single-row Four-point Contact Ball Slewing Bearing |
| Row Configuration | Single-row |
| Dimensions | |
| Bore Diameter (d) | 720 mm |
| Width (B) | 70 mm |
| Outer Diameter (D) | 900 mm |
| Number of Lubrication Holes n1 | 6 |
| Mounting Dimensions | |
| Outer Ring Mounting Hole P.C.D. D1 | 860 mm |
| Inner Ring Mounting Hole P.C.D. D2 | 750 mm |
| Lubrication Port Thread / Size Φ1 | 10 |
| Inner Ring Mounting Hole Count n2 | 36 |
| Inner Ring Mounting Hole Specification Φ2 (Ø / Thread) | 10 |
| Outer Ring Mounting Hole Count n3 | 36 |
| Outer Ring Mounting Hole Specification Φ3 (Ø / Thread) | 11 |
| Gear Data | |
| Gear Module m | 5 mm |
| Gear Tip Diameter De | 690.54 mm |
| Number of Gear Teeth z | 140 |
| Gear Face Width b | 50 mm |
| Addendum Modification Coefficient x | 0 |
| Reference Data | |
| Reference Mass (kg) | 109 kg |
HG-Q035 900 mm 720 mm 860 mm 750 mm 70 mm Frequently Asked Questions about HG-Q035 Four-Point Contact Ball Slewing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs HG-Q035 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Quality starts with raw material selection: CHG Bearing crafts HG-Q035 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
When fitting HG-Q035 over a 720 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Beyond standard alloy steel, CHG Bearing can customize the HG-Q035 Four-Point Contact Ball Slewing Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
