Verified from source documents for working lubrication data.
View source documentSource documents confirm this chemistry for match screening.
View source documentSource documents confirm this thickener base for compatibility review.
View source documentFinal product selection should be confirmed against current TDS, SDS, and operating conditions before quotation.
What is OKS 1155?
OKS 1155 is a silicone grease used for sliding contacts between metals, plastics, and elastomers at low sliding speeds, o-ring lubrication in pneumatic brake systems, and bearing lubrication with enhanced sealing effect. 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 -65°C to +175°C, base oil technology is complex ester / polyphenylmethylsiloxane, the required thickener base is lithium hydroxystearate, the NLGI grade is 2. 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 1155 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 1155
- Product type
- Silicone grease
- Common applications
- Sliding contacts between metals, plastics, and elastomers at low sliding speeds, o-ring lubrication in pneumatic brake systems, bearing lubrication with enhanced sealing effect, sliding surfaces requiring plastic and elastomer compatibility, and sliding contacts between metals, plastics, and elastomers
- Typical industries
- Glass and foundry industry, Shipbuilding and naval engineering, Chemical industry, Paper and packaging industry, and Railway equipment
- Lubrication temperature
- -65°C to +175°C
- Base oil technology
- complex ester / polyphenylmethylsiloxane
- Thickener base
- lithium hydroxystearate
- Consistency requirement
- 2
Key performance characteristics
- Adhesive properties for sliding contacts
- Enhanced sealing effect
- Plastic and elastomer compatibility
- Corrosion protection (SKF-EMCOR degree 0)
- Complex ester / polyphenylmethylsiloxane base oil technology
- Lithium hydroxystearate thickener base
- Not specified four-ball weld load
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Why teams evaluate OKS 1155 for this application
- Plastics and elastomer lubrication requirement
- Silicone grease application for sealing
- Local supply gaps for OKS 1155
- Private-label match evaluation
- Local supply gaps
- Lead-time reduction
- Maintenance standardization
Application fit criteria
- OKS 1155
- -65°C to +175°C
- Required match profile
- -65°C to +175°C
- OKS 1155
- complex ester / polyphenylmethylsiloxane
- Required match profile
- complex ester / polyphenylmethylsiloxane
- OKS 1155
- 2
- Required match profile
- 2
- OKS 1155
- lithium hydroxystearate
- Required match profile
- lithium hydroxystearate
- OKS 1155
- Sliding contacts between metals, plastics, and elastomers at low sliding speeds
- Required match profile
- Sliding contacts between metals, plastics, and elastomers at low sliding speeds
- OKS 1155
- Glass and foundry industry
- Required match profile
- Glass and foundry industry
Why temperature matching matters
OKS 1155 is being evaluated against a -65°C to +175°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 complex ester / polyphenylmethylsiloxane. 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 thickener base is lithium hydroxystearate. The required NLGI grade is 2. 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.
Application scenarios
Sliding contacts between metals, plastics, and elastomers at low sliding speeds
OKS 1155 may be used on sliding interfaces that need controlled friction, wear protection, and stable lubricant film formation. A replacement should preserve the same contact behavior and should be reviewed for surface material compatibility before broad rollout.
O-ring lubrication in pneumatic brake systems
OKS 1155 can be assessed for o-ring lubrication in pneumatic brake systems where the operating temperature, contact materials, load, contamination exposure, and lubrication interval are known. Because the base oil technology is complex ester / polyphenylmethylsiloxane, chemistry matching should be part of the approval step.
Bearing lubrication with enhanced sealing effect
OKS 1155 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 -65°C to +175°C.
Sliding surfaces requiring plastic and elastomer compatibility
OKS 1155 may be used on sliding interfaces that need controlled friction, wear protection, and stable lubricant film formation. A replacement should preserve the same contact behavior and should be reviewed for surface material compatibility before broad rollout.
Sliding contacts between metals, plastics, and elastomers
OKS 1155 may be used on sliding interfaces that need controlled friction, wear protection, and stable lubricant film formation. A replacement should preserve the same contact behavior and should be reviewed for surface material compatibility before broad rollout.
Equipment context
- sliding surfaces between metals, plastics, and elastomers
- bearings (normal, high-speed, slow-rotating)
- O-rings in pneumatic brake system devices
- bearings (normal, high-speed, slow-rotating) bearing interior
- sliding surfaces between metals, plastics, and elastomers sliding contact surface
Industry use cases
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 1155. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Shipbuilding and naval engineering: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 1155. 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 1155. 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 1155. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Railway equipment: demand planning should focus on temperature exposure, load, contamination, downtime cost, and whether the plant can run a controlled trial before switching from OKS 1155. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Metallurgical 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 1155. The more critical the equipment, the more important it is to verify the current TDS, SDS, and operating conditions before approving any proposed match.
Application approval checklist
- 1Validate temperature range confirmation.
- 2Validate base oil chemistry compatibility.
- 3Validate thickener compatibility with existing lubricant.
- 4Validate pure oxygen exposure check.
- 5Validate bearing load limit (max 1/3 permissible load with silicone grease).
- 6Validate temperature range.
- 7Validate base oil chemistry.
- 8Validate thickener compatibility.
Validation plan before rollout
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 1155, 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 1155. 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 1155 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.
Application review request
This page frames OKS 1155 as an application-fit review rather than a simple product lookup. The technical review checks the equipment duty, operating temperature, lubricant chemistry, material compatibility, and maintenance interval before recommending a sourcing or trial path.
What a technical reviewer will match
- The required match profile should preserve the lubrication-temperature requirement: -65°C to +175°C.
- Base oil technology is complex ester / polyphenylmethylsiloxane, so our review should include chemistry evidence.
- The required thickener base is lithium hydroxystearate, which should be checked for compatibility and mechanical stability.
- The application context includes sliding contacts between metals, plastics, and elastomers at low sliding speeds, o-ring lubrication in pneumatic brake systems, and bearing lubrication with enhanced sealing effect.
- 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 -65°C to +175°C and actual peak temperature.
The proposed match should preserve the complex ester / polyphenylmethylsiloxane chemistry unless engineering approves a change.
The lithium hydroxystearate thickener base should be checked for compatibility, retention, and mechanical stability.
Application context includes sliding contacts between metals, plastics, and elastomers at low sliding speeds, o-ring lubrication in pneumatic brake systems, and bearing lubrication with enhanced sealing effect.
Run document review and first-use monitoring before plant-wide changeover.
FAQ
Can OKS 1155 be replaced?
OKS 1155 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 1155?
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 1155 be used in bearings?
OKS 1155 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 1155?
Check the latest TDS, SDS, manufacturer product page, OEM maintenance guidance, and any site-specific lubrication standard before replacing OKS 1155. 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 1155?
The biggest risk is approving a substitute without validating the actual duty cycle against the -65°C to +175°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 1155: -65 °C to +175 °C
Lower working temperature °C -65 / Upper working temperature °C 175.
View source documentOKS 1155: 2
Consistency DIN 51 818 DIN ISO 2137 NLGI class 2.
View source documentOKS 1155: lithium hydroxystearate
Thickener Lithium hydroxystearate.
View source documentOKS 1155: complex ester / polyphenylmethylsiloxane
Base oil Complex ester / Base oil Polyphenylmethylsiloxane.
View source documentOKS 1155: OKS 1155 -> documented match profile
Both products target low-to-medium temperature grease lubrication for sliding contacts involving plastics and elastomers with sealing requirements.
View source document- Source document 1oks-germany.com
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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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