Manufactured by CHG Bearing, the 744H is a precision Deep Groove Ball Bearings. Key dimensional parameters include a 220 mm bore diameter, a 309.5 mm outer diameter, and a 38 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.
744H - Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 744H |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | Open |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Load Direction | Radial |
| Dimensions | |
| Bore Diameter (d) | 220 mm |
| Width (B) | 38 mm |
| Outer Diameter (D) | 309.5 mm |
| Bore Diameter Tolerance | -0.015 – 0 mm |
| Outside Diameter Tolerance | -0.018 – 0 mm |
| Width Tolerance | -0.3 – 0 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 146 kN |
| Basic Static Load Rating C0 (kN) | 168 kN |
| Material | |
| Mass (kg) | 9.51 kg |
| Ring Material | Bearing Steel |
| Cage Material | Brass |
| Ball Material | Bearing Steel |
744H 309.5 mm 220 mm 38 mm Frequently Asked Questions about 744H Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 744H with a precision bore diameter (d) of 220 mm, an outside diameter (D) of 309.5 mm, and a nominal ring width (B) of 38 mm. This configuration yields an effective cross-sectional wall thickness of 44.8 mm and an envelope ratio (D/d) of 1.41, delivering compact rigidity for OEM machinery housings.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 744H. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for 744H, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
For international ocean and air freight, CHG Bearing packs 744H 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.
