with inner ring
The inner ring also serves several functions. Primarily, it provides radial support for the gasket on the I.D. to help prevent the occurrences of buckling or imploding. Its I.D. is normally sized slightly larger than the I.D. of the flange bore, minimizing turbulence in process flow. The inner rings are normally supplied in the same material as the spiral .
There are many advantages to using an inner ring: Additional Compression Stop. Additional Blowout Resistance. Prevents Build Up of Process Fluid. Minimizes Erosion and Turbulence. Shields the Gasket. Prevents Buckling.
![Lubrication hole on outer ring NTN NK85/35R+1R75X85X35 with inner ring](https://m.xbmacq.com/uploaded_images/d2048281-lubrication-hole-on-outer-ring-ntn-nk85-35r-1r75x85x35-with-inner-ring.jpg)
- Lubrication hole on outer ring NTN NK85/35R+1R75X85X35 with inner ring
- NTN
- NK85/35R+1R75X85X35
![Characteristic outer ring frequency, BPF0 NTN NK90/35R+1R80X90X35 with inner ring](https://m.xbmacq.com/uploaded_images/d2048279-characteristic-outer-ring-frequency-bpf0-ntn-nk90-35r-1r80x90x35-with-inner-ring.jpg)
- Characteristic outer ring frequency, BPF0 NTN NK90/35R+1R80X90X35 with inner ring
- NTN
- NK90/35R+1R80X90X35
![Characteristic cage frequency, FTF NTN NK29/30R+1R25X29X30 with inner ring](https://m.xbmacq.com/uploaded_images/d2048276-characteristic-cage-frequency-ftf-ntn-nk29-30r-1r25x29x30-with-inner-ring.jpg)
- Characteristic cage frequency, FTF NTN NK29/30R+1R25X29X30 with inner ring
- NTN
- NK29/30R+1R25X29X30
![Characteristic cage frequency, FTF NTN NK26/20R+1R22X26X20 with inner ring](https://m.xbmacq.com/uploaded_images/d2048276-characteristic-cage-frequency-ftf-ntn-nk26-20r-1r22x26x20-with-inner-ring.jpg)
- Characteristic cage frequency, FTF NTN NK26/20R+1R22X26X20 with inner ring
- NTN
- NK26/20R+1R22X26X20
![Characteristic inner ring frequency, BPFI NTN NK100/36R+1R90X100X36 with inner ring](https://m.xbmacq.com/uploaded_images/d2048280-characteristic-inner-ring-frequency-bpfi-ntn-nk100-36r-1r90x100x36-with-inner-ring.jpg)
- Characteristic inner ring frequency, BPFI NTN NK100/36R+1R90X100X36 with inner ring
- NTN
- NK100/36R+1R90X100X36
![Characteristic outer ring frequency, BPF0 NTN NK8/12T2+1R5X8X12 with inner ring](https://m.xbmacq.com/uploaded_images/d2048278-characteristic-outer-ring-frequency-bpf0-ntn-nk8-12t2-1r5x8x12-with-inner-ring.jpg)
- Characteristic outer ring frequency, BPF0 NTN NK8/12T2+1R5X8X12 with inner ring
- NTN
- NK8/12T2+1R5X8X12
![17 mm x 30 mm x 14 mm rs min NTN NA4903LL/3AS with inner ring](https://m.xbmacq.com/uploaded_images/d2048281-17-mm-x-30-mm-x-14-mm-rs-min-ntn-na4903ll-3as-with-inner-ring.jpg)
- 17 mm x 30 mm x 14 mm rs min NTN NA4903LL/3AS with inner ring
- NTN
- NA4903LL/3AS
![Dw NTN NK40/20R+1R35X40X20 with inner ring](https://m.xbmacq.com/uploaded_images/d2048277-dw-ntn-nk40-20r-1r35x40x20-with-inner-ring.jpg)
- Dw NTN NK40/20R+1R35X40X20 with inner ring
- NTN
- NK40/20R+1R35X40X20
![C0r NTN NK60/35R+1R55X60X35 with inner ring](https://m.xbmacq.com/uploaded_images/d2048282-c0r-ntn-nk60-35r-1r55x60x35-with-inner-ring.jpg)
- C0r NTN NK60/35R+1R55X60X35 with inner ring
- NTN
- NK60/35R+1R55X60X35
![Precision class NTN NK50/25RCT+1R45X50X25 with inner ring](https://m.xbmacq.com/uploaded_images/d2048275-precision-class-ntn-nk50-25rct-1r45x50x25-with-inner-ring.jpg)
- Precision class NTN NK50/25RCT+1R45X50X25 with inner ring
- NTN
- NK50/25RCT+1R45X50X25
![s max NTN NK80/25R+1R70X80X25 with inner ring](https://m.xbmacq.com/uploaded_images/d2048277-s-max-ntn-nk80-25r-1r70x80x25-with-inner-ring.jpg)
- s max NTN NK80/25R+1R70X80X25 with inner ring
- NTN
- NK80/25R+1R70X80X25
![Max operating temperature, Tmax NTN NK45/20R+1R40X45X20 with inner ring](https://m.xbmacq.com/uploaded_images/d2048276-max-operating-temperature-tmax-ntn-nk45-20r-1r40x45x20-with-inner-ring.jpg)
- Max operating temperature, Tmax NTN NK45/20R+1R40X45X20 with inner ring
- NTN
- NK45/20R+1R40X45X20