Bearing Housing (`housing`)

Bearing Housing

Housing body stress and mounting bolt loads

Standards catalog

Validation: indicative · Method band: formula

Open calculator

Indicative method: Pillow-block / flange housing body stress and mounting-bolt tension screening

Assumptions

Linear elastic material behavior unless noted otherwise.
User is responsible for load combinations and load factors per the selected design code.
Design standard (US/EU/ISO) sets unit defaults and screening check labels — not a full code worksheet.

Limitations

Casting FEA, seal/relube layout, and OEM housing catalogs are out of scope.
Professional screening — verify critical housings against manufacturer data sheets.

Engineering checks

Check	IND	US	EU	ISO
Housing body bending stress	implemented	—	—	—
Mounting bolt tension	implemented	—	—	—

Purpose

Screen bearing housing body stress and mounting bolt tension/shear from radial and axial bearing reactions. Bridges the machine power-train workflow between bearing selection and bolt design. Includes screening SKU / seal / grease mounted BOM (SNL, UCP, FY, SAF-class).

Physics & theory

Simplified cantilever bracket:

o v er t u r nin g m o m e n t f r o m r a d ia l l o a d a t a r m l e n g t h p r o p or t i o na l t o b o l t c i r c l e . B o d y b e n d in g s t r ess f r o m r ec t an g u l a r sec t i o nm o d u l u s . B o l tt e n s i o n f r o mm o m e n t / (n \times b o l t c i r c l er a d i u s) . B o l t s h e a r f r o m r es u l t an tl o a d / n . F i t r eco mm e n d a t i o n r e u ses I S O 286 scr ee nin g f r o m r o l l in g b e a r in g l o g i c

Inputs

Parameter	Description
`boreDiameter`	Bearing bore / shaft diameter at housing
`radialLoad`, `axialLoad`	Bearing reactions (N)
`mountStyle`	Pillow block, flange, or foot
`boltCount`, `boltCircleDiameter`	Mounting pattern
`yieldStress`	Housing material yield
Catalog / seal prefs	Optional SKU class for mounted BOM

Outputs

Body safety factor, body utilization, bolt T/V, bolt utilization (von Mises / allow), deflection / fit estimate
Live Design Summary rail (body SF/util, bolt util, deflection/fit, SKU, status)
Deterministic housing SKU advisor (why this SNL/UCP/…, cost band, seal note, alternatives)
Compact mounted BOM on results Summary and in PDF/Excel
Sectioned PDF / Excel with body/bolt domain factors + recommendation

Cross-module handoff

Imports from bearings / shafts: bore, loads, speed.
Publishes tension, shear, boltCount, patternDiameter to bolts.

Assumptions & limitations

Structural screening only — not FEA of housing elasticity or OEM mounted-product databases.
SKU catalog is representative (SNL/UCP/FY/SAF-class), not full vendor housings.

Verification

CI: housing-indicative-01.json
Vitest: src/lib/machine/housing/engine.test.ts

Maintainer note: Bearing housing body stress and bolt pattern screening; power-train workflow bridge.

Bearing Housing

Assumptions

Limitations

Engineering checks

Bearing Housing (housing)

Bearing Housing (`housing`)