Bearing Database with Grease Fitting Specifications
Use this bearing database to look up bearing dimensions, grease nipple thread sizes, and centralized lubrication recommendations before you specify pumps, dividers, or injector systems. Data covers popular industrial brands and common bearing types used in motors, gearboxes, conveyors, and mobile equipment.
What you can search:
- Catalog bearing models across major OEM designations
- 6 brands — SKF · NSK · FAG · TIMKEN · NTN · KOYO
- Grease fitting thread types — M6×1 · M8×1 · M10×1 · 1/4-28 UNF · and related nipple standards
- Bearing types — deep groove ball · angular contact · cylindrical roller · tapered roller · spherical roller · thrust ball
Pair search results with IsoHiTech automatic lubrication systems, grease pumps, and grease nipples for a complete BOM.
Tip: Filter by brand, bearing type, or thread family, then review grease fitting thread, relubrication interval, and suggested system architecture in each result card.
Search bearing models by designation, brand, type, grease fitting thread, or lubrication method.
Search Results
Loading bearings...Why Grease Fitting Thread Size Matters
Wrong nipple thread damages bearing seats and causes chronic leaks. The most common industrial grease fitting threads in this database include:
| Thread | Typical use | IsoHiTech related product |
|---|---|---|
| M6×1 | Small bearings, compact motors | Straight M6 couplings |
| M8×1 | General industrial bearings | Injector ports, DLX adapters |
| M10×1 | Larger pillow block, conveyor rolls | Pump outlets, M10 straight coupling |
| 1/4-28 UNF | North American equipment | DIN / UNF grease nipples |
| PT 1/8 | Centralized system adapters | lubrication couplings |
How to Use This Bearing Database
- Search by bearing designation (e.g. 6205, 22210) or filter brand, type, and thread.
- Review each result — note bore / OD / width for housing design.
- Record grease fitting thread for nipple and adapter ordering.
- Check lubrication method and relubrication interval — manual zerk, single-line, PDI, or progressive block.
- Size your grease quantity per cycle from OEM relubrication tables or the bearing lubrication calculator (if linked on site).
- Build centralized system BOM — pump, dividers, tubing, fittings.
Bearing Type → Lubrication Architecture
| Bearing type | Common lubrication approach | IsoHiTech starting point |
|---|---|---|
| Deep groove ball | Periodic grease via nipple or oil mist | hand grease pump · PDI oil |
| Angular contact (spindle) | Precise oil PDI per point | DLX single injector |
| Cylindrical / spherical roller | Higher grease volume, progressive | Lincoln SSV |
| Tapered roller (gears) | Oil or soft grease circulation | positive injector |
| Thrust bearings | Often separate circuit | single line |
From Bearing Spec to System Components
After you identify thread and relubrication interval:
- Manual maintenance — correct grease nipple + grease gun
- Automatic grease (few points) — auto grease pump + progressive block
- Automatic oil (many points) — PDI system + 6 mm tubing
- Heavy mobile equipment — construction equipment lubrication guide
Grease Fitting Standards Quick Reference
Auto greaser fittings (Zerk / Alemite / DIN) must match bearing port and regional standard:
- DIN 71412 — common metric hydraulic-type nipples in EU machinery
- SAE / UNF — frequent on US-built equipment
- Centralized adapters — convert nipple thread to 4/6 mm tube at block
Product hub: auto greaser fittings guide.
Data Coverage & Limitations
- Database shows popular catalog bearings — verify critical applications against OEM manual.
- Relubrication intervals depend on speed, load, temperature, and contamination — adjust in field.
- For custom spindle or sealed-for-life bearings, contact engineering before specifying automatic systems.
Related Tools & Resources
- Bearing lubrication calculator
- Lubrication technologies overview
- How to choose lubrication fittings
- Request system quote with bearing list attached
Frequently Asked Questions
What brands are in the bearing database?
SKF, NSK, FAG, TIMKEN, NTN, and KOYO — filter in the search tool above.
What grease fitting threads are listed?
Common types include M6×1, M8×1, M10×1, 1/4-28 UNF, and related nipple standards.
Can I find relubrication intervals here?
Where available, results include lubrication guidance and relubrication intervals. Always confirm against OEM manual for critical speeds and loads.
How do I go from bearing data to an automatic system?
Note thread and interval → choose automatic lubrication architecture → size pump and metering → order fittings.
Does IsoHiTech supply matching grease nipples?
Yes — browse grease nipples category or auto greaser fittings.
What if my bearing is not in the database?
Submit designation via contact form — we can cross-reference catalog data and recommend fittings.