Verified from source documents for working lubrication data.
View source documentSource documents confirm this chemistry for match screening.
View source documentAffects retention and compatibility; confirm from TDS.
Final product selection should be confirmed against current TDS, SDS, and operating conditions before quotation.
What is OKS 428?
OKS 428 is a grease used for toothed gears, worm gears, and friction bearings. A useful replacement review should go beyond a simple cross-reference and verify the product definition, operating conditions, lubricant chemistry, and the reason a maintenance or procurement team needs another sourcing option.
The lubrication-temperature profile is -30°C to 120°C, base oil technology is synthetic oil, the NLGI grade is 00. These details are the starting point for technical matching because they affect film stability, pumpability, separation risk, and service life under real equipment conditions.
Typical demand for OKS 428 alternatives is driven by regional availability, long lead times, price changes, distributor coverage, or lubricant standardization across multiple plants. At this stage, the goal is to define a qualified technical requirement that can be reviewed against source documents, availability, and private-label sourcing options.
Understanding OKS 428
- Product type
- Grease
- Common applications
- Toothed gears, worm gears, friction bearings, and gear lubrication
- Typical industries
- Rubber and plastic processing, Paper and packaging industry, Glass and foundry industry, Chemical industry, and Rail vehicle technology
- Lubrication temperature
- -30°C to 120°C
- Base oil technology
- synthetic oil
- Thickener base
- Requires thickener confirmation
- Consistency requirement
- 00
Key performance characteristics
- Long-term lubrication
- Wear reduction
- Leakage prevention
- Surface coverage
- Synthetic oil base oil technology
- 3,000 N four-ball weld load
- High-temperature support around -30°C to 120°C, subject to actual continuous and peak operating conditions.
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Why OKS 428 needs document-backed matching
- Shutdown maintenance
- Supply gaps
- Private-label match evaluation
- Local supply gaps
- Lead-time reduction
- Maintenance standardization
- Local stock or distributor coverage for OKS 428 is limited.
Specification match table
- OKS 428
- -30°C to 120°C
- Required match profile
- -30°C to 120°C
- OKS 428
- synthetic oil
- Required match profile
- synthetic oil
- OKS 428
- 00
- Required match profile
- 00
- OKS 428
- Thickener base requires confirmation
- Required match profile
- Verify compatibility before changeover
- OKS 428
- Toothed gears
- Required match profile
- Toothed gears
- OKS 428
- Rubber and plastic processing
- Required match profile
- Rubber and plastic processing
Why temperature matching matters
OKS 428 is being evaluated against a -30°C to 120°C lubrication-temperature requirement. Before sourcing an alternative, maintenance teams should check continuous temperature, peak temperature, startup conditions, contamination exposure, load, speed, and relubrication interval for the actual lubrication point.
Why lubricant chemistry matters
The base oil technology is synthetic oil. Base oil chemistry affects evaporation loss, oxidation resistance, low-temperature behavior, and compatibility with the existing lubricant in the lubrication point. If the site is changing brands, the new product should be reviewed for chemistry compatibility and purge or changeover requirements.
Why thickener and consistency matter
The required NLGI grade is 00. Thickener system and consistency influence mechanical stability, water resistance, oil release, and how the lubricant stays in place. A replacement that matches temperature but differs sharply in thickener or consistency may behave differently under vibration, load, or repeated heating cycles.
Where the matched specification applies
Toothed gears
OKS 428 can be assessed for toothed gears where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is synthetic oil, chemistry matching should be part of the approval step.
Worm gears
OKS 428 can be assessed for worm gears where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is synthetic oil, chemistry matching should be part of the approval step.
Friction bearings
OKS 428 can be evaluated for bearing positions where heat, load, seal material, speed, and relubrication interval are known. When replacing it in a bearing, the alternative should be checked for oil separation, consistency retention, and compatibility with the existing maintenance interval across -30°C to 120°C.
Gear lubrication
OKS 428 can be assessed for gear lubrication where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is synthetic oil, chemistry matching should be part of the approval step.
Equipment context
- gears
- bearings
- gears toothed and worm gears
- bearings friction bearings
Industry use cases
Rubber and plastic processing: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Paper and packaging industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Glass and foundry industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Chemical industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Rail vehicle technology: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Iron and steel industry: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 428. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Specification verification checklist
- 1Validate temperature range.
- 2Validate base oil chemistry.
- 3Validate NLGI consistency.
- 4Validate operating duty cycle.
- 5Verify the actual lubrication temperature range and relubrication interval.
- 6Confirm base oil, thickener, NLGI grade, and drop point against the current TDS.
- 7Check seal compatibility, existing grease compatibility, and purge requirements before full changeover.
- 8Review load, speed, washout, contamination, and relubrication interval.
Validation plan before approval
Confirm the real operating window
Do not approve a proposed match only because the published temperature range looks similar. Record the continuous running temperature, short peak temperature, startup and shutdown conditions, and whether the lubrication point is exposed to washdown, dust, process chemicals, or outdoor weather. This prevents a replacement from passing on paper while failing in the real machine environment.
Check material and lubricant compatibility
Before switching from OKS 428, compare the current lubricant with the proposed product for base oil, thickener, additives, seal compatibility, and whether old grease must be purged. If mixed greases are likely to remain in bearings, housings, or lubrication lines, a technical reviewer should review compatibility guidance before starting the changeover.
Run a controlled first-use review
For critical equipment, introduce any proposed match through a limited maintenance trial. Track bearing temperature, noise, vibration, leakage, relubrication volume, lubricant condition, and operator feedback over the first service interval. The result gives purchasing and engineering a shared basis for approval instead of relying only on a catalog match.
Procurement review points
- Submit the requirement so a technical reviewer can classify any proposed match as an alternative, equivalent, or functional replacement for OKS 428. These terms are not identical: an equivalent implies closer technical alignment, while an alternative may still need engineering review.
- Request current TDS and SDS documents, packaging options, lead time, MOQ, shelf life, and country or region availability before changing the approved vendor list.
- If the site uses OKS 428 in multiple applications, separate the approval by lubrication point. A product that works in one bearing position may not automatically be approved for higher speed, higher load, washdown, or different relubrication intervals.
- Document the reason for change, the approval evidence, the first-use date, and the maintenance result. This makes future procurement audits and repeat orders easier.
Specification match request
This page focuses on document-backed specification matching for OKS 428. The review prioritizes temperature range, base oil, thickener, NLGI or consistency, application duty, and evidence quality before a proposed match is used in purchasing or maintenance planning.
What a technical reviewer will match
- The required match profile should preserve the lubrication-temperature requirement: -30°C to 120°C.
- Base oil technology is synthetic oil, so our review should include chemistry evidence.
- The thickener system should be confirmed against the original TDS.
- The application context includes toothed gears, worm gears, and friction bearings.
- Actual suitability should be confirmed against manufacturer documentation and operating conditions after the requirement is submitted.
Any proposed match should be checked against the lubrication-temperature requirement of -30°C to 120°C and actual peak temperature.
The proposed match should preserve the synthetic oil chemistry unless engineering approves a change.
Confirm thickener system and compatibility from documentation.
Application context includes toothed gears, worm gears, and friction bearings.
Run document review and first-use monitoring before plant-wide changeover.
FAQ
Can OKS 428 be replaced?
OKS 428 can be replaced in many maintenance programs, but the replacement should be validated against the same technical envelope rather than approved by name alone. Start with temperature range, base oil chemistry, thickener system, NLGI or consistency data, and the exact application point. Then compare the latest TDS and SDS documents with the operating conditions on site. For critical equipment, use a controlled first-use trial before approving a plant-wide substitution.
What is equivalent to OKS 428?
This page is designed to define the sourcing requirement rather than claim a fixed equivalent. A true equivalent needs evidence that the operating temperature, lubricant chemistry, thickener system, application duty, and material compatibility are close enough for the actual lubrication point. Share the TDS, SDS, and site duty cycle so a technical reviewer can prepare a documented match request before the approved product list is changed.
Can OKS 428 be used in bearings?
OKS 428 may be used in bearing or general lubrication points only when the bearing type, speed, load, temperature, seal material, and relubrication interval match the documented product profile. A proposed replacement should be checked for NLGI grade, thickener compatibility, base oil chemistry, and oil separation behavior before changing the approved lubricant.
What temperature range should an equivalent support?
An equivalent should support the real operating envelope of the lubrication point, not just a headline number. Always compare continuous temperature, peak temperature, ambient conditions, load, speed, contamination exposure, and relubrication interval before approval.
How should replacement products be validated?
Validate replacements with document review first, then a limited trial. Check the TDS, SDS, application point, temperature range, base oil, thickener, NLGI grade, seal compatibility, load, speed, and relubrication interval. After that, run a controlled first-use review on the real equipment and track temperature, noise, vibration, leakage, lubricant condition, and maintenance feedback. If the trial is stable, the proposed match can move from review to approval.
What documents should be checked before replacing OKS 428?
Check the latest TDS, SDS, manufacturer product page, OEM maintenance guidance, and any site-specific lubrication standard before replacing OKS 428. PDF source documents are especially important because industrial lubricant specifications are often more complete than product web pages. The review should capture temperature range, base oil, thickener, consistency, drop point if available, material compatibility, safety handling, and any limitations stated by the manufacturer.
What is the biggest risk when switching from OKS 428?
The biggest risk is approving a substitute without validating the actual duty cycle against the -30°C to 120°C temperature requirement, seal compatibility, contamination exposure, and relubrication interval. A replacement can look similar in a table but behave differently under heat, load, vibration, or mixed-lubricant conditions. For important equipment, the safer path is document review, engineering confirmation, and a monitored first-use trial before plant-wide rollout.
Technical source documents
Verified data points
OKS 428: 3,000 N
four-ball test rig welding load: 3,000 N
View source documentOKS 428: -30 °C to 120 °C
lower operating temperature: -30 °C upper operating temperature: 120 °C
View source documentOKS 428: Synthetic fluid grease for heavy-loaded toothed and worm gears in outdoor conditions or low temperatures.
Find a dealer Areas of application Lubrication of heavy loaded toothed gears and worm gears exposed to outdoor conditions and/or low temperatures, as well as tilted or vertical shafts, especially with gear designs which are not oil-tight...
View source documentOKS 428: fluid grease
Search × OKS 428 – Fluid Grease for Gears, synthetic OKS 428 is a synthetic fluid grease for gears.
View source documentOKS 428: OKS
Search × OKS 428 – Fluid Grease for Gears, synthetic OKS 428 is a synthetic fluid grease for gears.
View source document- Source document 1oks-germany.com
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Ready for review
Send your operating conditions for a documented match
Include the current product, equipment, temperature range, load, speed, region, and any TDS/SDS files. The request helps classify the demand as an alternative, equivalent, or replacement case before quotation.
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