NTN Bearings
In testing the NTN bearings are generally the best irrespective of which seal is put on them. Their technical support is also very good (especially in the UK).
The vast majority of NTN's 6000 series bearings are made in Japan and they are sticklers for quality control. The only issue with NTN is supply.
![127 mm x 182,562 mm x 38,1 mm NTN 4T-48290/48220 tapered roller bearings](https://m.makuf.com/uploaded_images/d9325-127-mm-x-182-562-mm-x-38-1-mm-ntn-4t-48290-48220-tapered-roller-bearings.jpg)
- 127 mm x 182,562 mm x 38,1 mm NTN 4T-48290/48220 tapered roller bearings
- Class 2
- Click here
![850 mm x 1 360 mm x 400 mm NTN 231/850BK spherical roller bearings](https://m.makuf.com/uploaded_images/d9328-850-mm-x-1-360-mm-x-400-mm-ntn-231-850bk-spherical-roller-bearings.jpg)
- 850 mm x 1 360 mm x 400 mm NTN 231/850BK spherical roller bearings
- Uncoated
- Lubrication Fitting
![NTN HMK4030 needle roller bearings](https://m.makuf.com/uploaded_images/d9325-ntn-hmk4030-needle-roller-bearings.jpg)
- NTN HMK4030 needle roller bearings
- 12 º
- 0.3750 in
![150 mm x 270 mm x 45 mm NTN 6230 deep groove ball bearings](https://m.makuf.com/uploaded_images/d9326-150-mm-x-270-mm-x-45-mm-ntn-6230-deep-groove-ball-bearings.jpg)
- 150 mm x 270 mm x 45 mm NTN 6230 deep groove ball bearings
- 4.0000 in
- 7.7500 to 8.7500 in
![30 mm x 72 mm x 19 mm NTN AC-6306ZZ deep groove ball bearings](https://m.makuf.com/uploaded_images/d9323-30-mm-x-72-mm-x-19-mm-ntn-ac-6306zz-deep-groove-ball-bearings.jpg)
- 30 mm x 72 mm x 19 mm NTN AC-6306ZZ deep groove ball bearings
- Contact with Slinger
- 2.2500 in
![NTN 4T-NA643/632D tapered roller bearings](https://m.makuf.com/uploaded_images/d9325-ntn-4t-na643-632d-tapered-roller-bearings.jpg)
- NTN 4T-NA643/632D tapered roller bearings
- Bearings with Housin
- No
![NTN K37X42X23.8 needle roller bearings](https://m.makuf.com/uploaded_images/d9325-ntn-k37x42x23-8-needle-roller-bearings.jpg)
- NTN K37X42X23.8 needle roller bearings
- NTN
- K37X42X23.8
![NTN NK18X27X13 needle roller bearings](https://m.makuf.com/uploaded_images/d9329-ntn-nk18x27x13-needle-roller-bearings.jpg)
- NTN NK18X27X13 needle roller bearings
- 11 mm
- Open
![12 mm x 24 mm x 16 mm NTN NKXR15T2+IR12×15×16 complex bearings](https://m.makuf.com/uploaded_images/d9329-12-mm-x-24-mm-x-16-mm-ntn-nkxr15t2-ir12-15-16-complex-bearings.jpg)
- 12 mm x 24 mm x 16 mm NTN NKXR15T2+IR12×15×16 complex bearings
- 85000 RPM
- Phenolic Resin