CXSN&SAF vs. SN&SAF
Same Housing Dimensions
Same Bearing O.D.
Factory-assembled
PRODUCT
User-assembled
Only one part to order
ORDER
Three or more parts to order
Triple-lip seal contacts the stainless steel flinger, not the shaft or inner ring. It maitains positive seal contact even under misalignment.
The grease in CX bearing purges depending on the speed of application. As the RPM’s increse this seal allows the excess grease to excape helping the bearing run cooler.
SEAL
The seal lip rubs against the shaft which leads to damage to the shafting. Reduced seal contact can also occur when there is misalignment.
The SN&SAF housing has a larger void meaning more grease is needed. The seal design of the SN&SAF housing does not allow excess grease to purge easily meaning that it continually runs at a higher temperature.
CROSSLOC™ with Long adapter sleeve
Maximum holding power through full-length sleeve contact.
LOCKING STYLE
Adapter with a Short adapter sleeve.
Reduced shaft contact length.
EASY
- Tighten the cap screws in a star pattern to lock
INSTALL
DIFFICULT
- Check the clearance with feeler gauges
- Tighten the lock nut until the specified clearance is reached.
- Bend a tab of lock washer
EASY
- Loosen the cap screws in a star pattern to remove
REMOVE
DIFFICULT
- Loosen the locknut and hit with a hammer to remove
- Or use a bearing puller.
Hex key
Torque wrench (recommended)
No bending a tab or marking on the nut.
TOOLS
Spanner wrench
Hammer and drift
Feeler gauges and charts
Factory greased and sealed
LUBRICANT
User must purchase and pack grease.
Requires four times more grease than CXSN&SAF because SN&SAF has a larger void.
Lower total cost of ownership
Initial purchase and installation costs are only part of the savings. Longer bearing life, reduced maintenance, and less downtime deliver even greater long-term value.
Example Cost Comparison Between Classic SN&SAF and CROSSLOC™ SN&SAF
- Purchase Cost of classic SN&SAF (Total of Plummer Block + SRB + Adapter + Locating Ring + Seals + lubricant) 78%
- Purchase Cost of CROSSLOC™ SN&SAF (One piece complete unit of sealed bearing with CROSSLOC™) 100%
- Skilled Labour Cost of Mounting classic SN&SAF (Assembling parts and installing adapter sleeve with lubricant) 25%
- Cost of Mounting CROSSLOC™ SN&SAF (Simply tighten the cap screws.) 3%
- Skilled Labour Cost of Dismounting classic SN&SAF (Disassembling parts, cleaning lubricant and uninstalling adapter sleeve) 21%
- Cost of Dismounting CROSSLOC™ SN&SAF (Loosening Cap Screws without skills) 2.5%
Beyond Initial Cost Savings
✔ Longer bearing life
✔ Reduced maintenance
✔ Less unplanned downtime
✔ Fewer bearing replacements
✔ Lower labor costs
✔ Increased equipment uptime
✔ Lower Total Cost of Ownership
Initial Grease Fill Comparison
- SN517 Plummer Block Unit (500 g) 100%
- CROSSLOC™ CX2SN17-075 (132 g) 26%
Using less grease helps the environment.
Actual service life depends on operating conditions and maintenance practices. See our Case Studies for real-world performance examples.