CALCULATORS / BEARINGS AND LINEAR GUIDES

Two-bearing support loads calculator

Two supports with one radial point load between them.

bearings-support-loads.napkin / editable

SCENARIO COMPARISON

Compare the numbers.

This source describes an analytical model. Its quantities and checks are the view.

Scenario	rightN	leftN
	400	600
	320	480

All calculated quantities are listed with the inputs. Switch to Source to inspect the equations.

SCENARIOS / CALCULATED VALUESSAME SOURCE

Change an input to see the consequences.

load between bearings80.00 mm✓ passes

BASELINE INPUTS

force1000 Nspan200 mmoffset80 mm

CALCULATED

right400 N

left600 N

Edits change the baseline source.

THE SOURCE

Edits below update the same model.

# Two-bearing support loads
# Scope: Two supports with one radial point load between them.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

force = 1000 N
span = 200 mm
offset = 80 mm

right := force*offset/span [N]
left := force-right [N]

check load between bearings: offset <= span

scenario alternative: force = 800 N

Calculated from your source · not saved

Baseline · Baseline

load between bearings80.00 mm ✓ passes

alternative · alternative

load between bearings80.00 mm ✓ passes

Illustrative first-order example. Checks are editable requirements, not design standards. The broader topic may require additional equations, data, and validation.

Formula and units

This example uses the following equations. Input names and units match the editable source above.

right: right = force*offset/span [N]
left: left = force-right [N]

Original worked example

These are the baseline values in the downloadable source. Edits above let you test your own values.

Given

force: 1000 N
span: 200 mm
offset: 80 mm

Calculated

right: 400 N
left: 600 N

Assumptions and limits

Two supports with one radial point load between them.

The requirement checks use the limits written in this example. Passing a check does not establish that the model covers every load, material behavior, or operating condition in a real design.

Download this .napkin example ↓

Take it further with your agent

Napkin keeps the inputs, equations, checks and assumptions together in one study. Your agent sets it up; you change the numbers.

Try with Claude ↗

codex 'Use Napkin (https://napkin.engineering/mcp, or the local Napkin plugin) to build a study: Two-bearing support loads. Inputs: shaft loads; axial positions; bearing span. Outputs: radial reactions; axial-load allocation. Model scope: Catalog-dependent load and statistical rating-life models. Read napkin_capabilities and the current snapshot. Ask me for the values that matter, label assumptions with units, author .napkin source, validate it and apply it with napkin_source using the current revision, then open the study. Add checks for the limits I supply. Keep unsupported analyses explicit.'

Claude needs the Napkin connector; Codex needs the Napkin plugin. Set up your agent ↗

The broader study

The topic brief below describes the broader scope. The worked example above states the particular calculation it implements.

Inputs: shaft loads, axial positions, bearing span
Outputs: radial reactions, axial-load allocation
Modes: calculate, compare, sweep
Drawing: Bearing load diagram

EXECUTABLE WORKED EXAMPLE · FIRST-ORDER MODEL · CHECK THE SCOPE & ASSUMPTIONS