Decision inputs
- Bearing type and contact angle
- Required preload window
- Speed and temperature rise
- Stiffness and life targets
- Packaging and adjustment method
APPLICATION SOLUTION
Bearing preload
Disc spring stacks give angular contact and tapered roller bearings stable axial preload with thermal growth compensation; covers preload window definition, stack stiffness selection and preload verification methods.
ENGINEERING PROBLEM
With axial clearance, angular contact and tapered roller bearings lose stiffness and may skid or lose life; a stable, verifiable preload is required.
BOUNDARY
This page describes a decision pattern and does not promise size or performance for another operating condition.
Solution pattern
- Apply constant preload with a disc spring stack, compensating thermal growth and wear
- Tune preload stiffness through nested and opposed stacking
- Close the loop with force-displacement or travel measurement
Key risks
- Insufficient preload lets clearance return; excess preload raises temperature and cuts life
- Spring tilt and poor guiding cause uneven load
- Preload drift after locking
Verification plan
- Axial force-displacement calibration
- Clearance re-check cold and at working temperature
- Temperature rise test
- Preload retention check after extended running
Source-backed correspondences
| Summary | Load | Travel | Source |
|---|---|---|---|
| 轴承预紧——按preload目标预选产品族；场景摘要仅供决策参考，不构成对其他工况的产品承诺。 | 按轴承预紧力目标 | 轴向游隙补偿 | Source ↗ |
Evidence (library locators)
Every technical claim traces to a specific asset version and page; restricted sources show locator metadata only.
- US3665758A bearing preload measuring device PDF p.1 · mechanism(internal source; excerpt not public)
- 095 Muszy ski IJMMT 2022 Spring Stacking Stiffness Angular Contact Spindle PDF p.1 · mechanism(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.1 · mechanism(internal source; excerpt not public)
- 177 NSK Rolling Bearings Catalog E728 pdf PDF p.3 · mechanism(internal source; excerpt not public)
- 087 Gala Precision Bearing Series Disc Springs 选型表 PDF PDF p.2 (OCR) · mechanism(internal source; excerpt not public)
- US3665758A bearing preload measuring device PDF p.1 · mechanism(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.1 · numeric(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.4 · numeric(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.4 · numeric(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.5 · numeric(internal source; excerpt not public)
- 2022 Ship Thrust Bearing Integrated Disc Spring PDF p.6 · numeric(internal source; excerpt not public)
- 095 Muszy ski IJMMT 2022 Spring Stacking Stiffness Angular Contact Spindle PDF p.4 · numeric(internal source; excerpt not public)
- 136 Gala Precision Spring Brochure 产品目录 PDF p.5 · numeric(internal source; excerpt not public)
- 177 NSK Rolling Bearings Catalog E728 pdf PDF p.5 · numeric(internal source; excerpt not public)
Cases illustrate decisions and do not constitute a specification promise for any other operating condition.
ENGINEERING REVIEW