TRB · NONLINEAR AXIAL MODEL

TRB Auto

The same bearing-to-setting workflow, with load-dependent axial deformation curves and an iterative equilibrium solver. Shaft and housing stiffness remain separate. This reduced model does not solve a full coupled stiffness matrix.

Independent interactive 3D demo · Turkish

Version 1.2.0 · Updated: 29 October 2026

Loading bearing dataset…

01 · BearingsComplete single-row products only

Bearing A

Product designation

Shaft seat tolerance[ISO]

Hub · housing bore tolerance[ISO]

Bearing tolerance

Seat fits and manufacturing guidance

Bearing B

Product designation

Shaft seat tolerance[ISO]

Hub · housing bore tolerance[ISO]

Bearing tolerance

Seat fits and manufacturing guidance

02 · Arrangement, loads and geometryLive calculation

Bearing arrangement

External axial force direction

Radial force Fr[kN]

Axial force Fa[kN]

Shaft speed[r/min]

Radial reaction method

Bearing mid-plane span L[mm]

Radial load position x[mm]

Additional bending moment M[kN·mm]

Radial reaction at A[kN]

Radial reaction at B[kN]

03 · Nonlinear axial responseDataset-generated curves · iterative solution

Effective / full roller length[Lwe/l]

Catalogue speed basis

No STEP file is required. Roller count, full length and contact angle come from the selected record. Lwe = ratio × full length; 0.90 is an editable model assumption. Matching records use documented cold and hot SimPro curves; other records use source-profile estimates.

Bearing A

Cold assembly curve[kN; mm]

Operating curve[kN; mm]

Data source / conditions

Bearing B

Cold assembly curve[kN; mm]

Operating curve[kN; mm]

Data source / conditions

Shaft axial stiffness[kN/mm]

Housing axial stiffness[kN/mm]

Ks and Kh describe the structural load path only. Use relative A–B interface movement, not peak total deformation. Keep bearing contact compliance out of these values.

Operating tangent stiffness Kn[kN/mm]

Force comes from curve deformation and equilibrium. Kn is the local slope after convergence, not a multiplier for total closure. Radial–axial equilibrium and first-order speed effects are included. Intermediate-temperature coupled forces are withheld; no full tilt/flange stiffness matrix is solved.

04 · Temperature and expansion

Assembly temperature[°C]

Thermal calculation

Operating shaft temperature[°C]

Operating housing temperature[°C]

Effective shaft length[mm]

Effective housing length[mm]

Shaft expansion coefficient[10⁻⁶/K]

Housing expansion coefficient[10⁻⁶/K]

Ring-expansion correction[mm]

Fit-change correction[mm]

Total thermal setting change[mm]

Thermal transition & bearing loads

Overview shows the whole diagram. Enlarge it to read labels; swipe horizontally when enlarged.

Temperature transition 100%

The slider interpolates temperature, not elapsed time or a thermal simulation. Once calculable, the cold assembly setting stays fixed throughout the transition; it is never redesigned at each frame. External loads stay constant. Section shapes are schematic. Read numerical displacements below; no physical deformation scale is implied.

05 · Construction and design checksNot a target preload/endplay input

A-side compliance share λ[0–1]

Check full load at cold start

Assembly-setting tolerance ±[mm]

Thermal-change uncertainty ±[mm]

Minimum basic rating life[h]

Minimum static safety s₀[—]

Values update as you edit. Calculations stay in your browser.

TRB Auto

Thermal transition & bearing loads

Results · setting and loads

Engineering results report