Combined Bearing Seal Options: selection, replacement and quotation support
Seal execution affects contamination protection, relubrication and service life of combined roller bearings in forklift masts, steel equipment and guide systems.
Cross references and catalog data support preliminary identification. Confirm the current drawing, load capacity, tolerances and application requirements before ordering. See the industrial bearing RFQ checklist for the full data set.
Common seal executions
Combined bearings are offered open, shielded or sealed depending on contamination and relubrication needs.
- Open (no shield) — for clean, relubricated guide systems
- ZZ metal shield — light contamination, low friction
- Rubber contact seal — dust, coolant and washdown duty
- Relubricatable (grease nipple / AP2-LUB style) — high-cycle automation
Sealed and vibration-duty variants
For vibrating or heavily contaminated equipment, a sealed execution with retained grease protects the raceway. State the vibration level and sealed requirement so the right seal and clearance are selected.
- Sealed radial roller execution
- Vibration and shock-duty clearance
- Grease type and relubrication interval
How to specify the seal
Seal choice follows the operating environment, not the catalog code alone. Provide contamination, washdown, speed and maintenance access so the seal and grease are matched to duty.
- Contamination and washdown level
- Required service interval
- Drawing or old marking for confirmation
Information required for combined bearing seal options quotation
- 1 Identify — model, suffix and machine reference
- 2 Measure — envelope and mounting dimensions
- 3 Describe duty — load, speed, shock and environment
- 4 Approve — proposed drawing and documents
Related products and buyer resources
More buyer support guides
Combined Bearing Seal Options FAQ
How do I specify combined bearing seal options?
Send the complete model, all suffixes, quantity, delivery country and a controlled drawing when available. Also state load, speed, environment and mounting details.
Can you verify an equivalent combined bearing seal options?
Yes. Cross-reference numbers start the review, but interchangeability is confirmed from dimensions, internal design, adjustment, load capacity, lubrication and operating conditions.
What information is required for a quotation?
Provide the old marking, photos or drawing, critical dimensions, application, quantity and destination. Required inspection documents should be stated before quotation.
Technical note: This guide supports preliminary sourcing. Confirm the controlled drawing, tolerances, load capacity and application requirements before ordering. Return to the solutions library, browse bearing products or review quality and inspection scope.