Manufactured by CHG Bearing, the 18HG44120Z1 is a precision Backing Bearings. Key dimensional parameters include a 90 mm bore diameter, a 220.02 mm outer diameter, and a 120 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.
18HG44120Z1 - Backing Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 18HG44120Z1 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Backing Bearing |
| Structure (Drawing Reference) | N/A |
| Dimensions | |
| Bore Diameter (d) | 90 mm |
| Width (B) | 120 mm |
| Outer Diameter (D) | 220.02 mm |
| Outer Ring Width C | 120 mm |
| Cross-Section Height H | 65 mm |
| Performance | |
| Basic Dynamic Load Rating Cr (kN) | 790 kN |
| Basic Static Load Rating C0r (kN) | 1530 kN |
| Material | |
| Mass (kg) | 28.6 kg |
18HG44120Z1 220.02 mm 90 mm 120 mm Frequently Asked Questions about 18HG44120Z1 Backing Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing 18HG44120Z1, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
Yes, 100% of 18HG44120Z1 Backing Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
To ensure optimum performance of CHG Bearing 18HG44120Z1 Backing Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 90 mm bore. For the 220.02 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
When fitting 18HG44120Z1 over a 90 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.
