Bearing component · Material and drawing-specific selection
1204CE ceramic self-aligning bearing
A ceramic self-aligning bearing reference with several advertised material options. Its complete construction, dimensions and operating envelope need a supplier drawing and application review.
“Ceramic” leaves several components to specify
The source explicitly names 1204CE and lists 1200CE through 1210CE in the self-aligning family. It advertises zirconia, silicon nitride and silicon carbide options. [1] It does not assign one material set to the exact ordered bearing, so none is inferred from the white catalogue illustration.
| Component | Specification to obtain |
|---|---|
| Inner and outer rings | Exact material/grade, controlled geometry, tolerances and relevant delivered condition. |
| Rolling elements | Material and quality requirements, selected with the ring/raceway arrangement. |
| Cage / retainer | Material, construction and compatibility with temperature, fluid and duty. |
| Seals or shields, if offered | Actual inclusion, material and sealing arrangement; no feature inferred from the reference. |
| Lubrication / supplied condition | Required operating lubrication, cleanliness and handling instructions for the selected assembly. |
A full-ceramic or hybrid construction must be defined explicitly. A material option in this page is not an assembled-bearing insulation, temperature, corrosion or service-life test result.
A familiar number is not a controlled drawing
The readable entry does not publish a 1204CE bore/outside-diameter/width table, fit tolerances or clearance class. [1] We do not borrow dimensions from another manufacturer’s steel 1204 or convert “CE” into a verified standard construction.
Supply the installation
Provide shaft and housing drawings, mounting/retention arrangement, alignment conditions and existing bearing identity. Describe replacement history and why a different material is proposed.
Obtain the offered drawing
Match the actual 1204CE variant’s geometry, tolerances and clearance to that installation. Request permitted alignment and shaft/housing requirements; the self-aligning label is not an unlimited misalignment allowance.
UC205CE is a separate insert-bearing entry. Its zirconia or locking/housing details do not fill this product’s missing specification. Keep the reference and bearing form together through the quotation.
Give the conditions behind the material choice
- Mechanical duty
- Radial/axial loads, speed, shock and cycle
- Environment
- Temperature, named fluids/chemicals and contamination
- Assembly behaviour
- Required electrical/magnetic properties, if relevant
- Service conditions
- Lubrication, sealing, installation and handling
The company generally describes ceramic temperature/corrosion/non-magnetic advantages. [2] A cage, seal or lubricant can impose a separate limit, and no numerical load/speed envelope for this construction was established. Request the selected assembly’s supported data.
Do not copy a steel bearing’s rating life
ISO 281’s publisher scope addresses conventional high-quality hardened-steel bearings. [3] It does not supply this ceramic construction’s dynamic rating or life result. Require the actual material/design/test basis; no L10 calculation or service-hour promise is invented here.
Approve a repeatable construction through a relevant trial
- Freeze one sample definitionAgree drawing/revision, component materials, clearance, supplied condition and sample identity.
- Check the actual requirementDefine dimensional/material records and any performance tests, conditions and acceptance. A trial intended to address chemical exposure needs different evidence from one intended to address shock or speed.
- Retain the approved variantRecord results, deviations, change/reapproval rules and lot identification for repeat orders. Confirm quantity/lead time for that exact construction.
No machine-specific OEM approval, witnessed factory test or supplier certificate authentication is claimed. This record supports a drawing-led component enquiry, not a validated excavator or crane installation.
Is 1204CE necessarily zirconia throughout?
The source offers several ceramic materials without specifying all rings, balls and cage components. Ask for the complete ordered construction.
Can the white photograph identify the material?
No. Appearance cannot establish a grade, cage/seal specification or mechanical rating. Obtain controlled material and dimensional records.
Prepare the bearing application brief
Sources & review
- Junwang 1204CE product detail ↗
Named ceramic self-aligning entry and material/size options. No controlled dimensions, component-specific material or numerical load/speed table.
2026-10-11 - Junwang company introduction ↗
General material benefits/application claims; not the selected bearing’s validated performance.
2026-10-11 - ISO 281:2007 publisher abstract ↗
Conventional hardened-steel bearing load/life calculation scope. No copied steel ratings or ceramic conformity inference.
2026-10-11
Specifications come from the manufacturer’s published information and the sources above; buying advice is written by CivilEquip with AI assistance. Ask the manufacturer to confirm the data for your configuration. Editorial policy · Report a correction.