Curve roller bearing:KR,KRV,KRE,STO,RSTO,NATR,NATV,NUTR CRY,RNA22..2RS,NA22..2RS Material:20GrMo ,GCr15 Metric and inch sizes
Curve roller bearing/Cam follower:
curve roller /cam follower is composed of a stud used as the tray of a group of rollers and a thick wall outer ring .The shoulder of the stud and the surface retaining ring on the stud form the guiding faces on the two sides of the outer ring.When the curve rollers are running on the plain tray or cam wheel,the inner stress on the rollers will increase due to the deformation of the outer ring.Therefore the rated load should be selected as curve roller column in this operational case.
In KR,KR...PP curve rollers/cam follower,the rolling needles are guided by the retainer while the outer ring is guided by the retaining ring shaft on the stud.These rollers are suitable for heave load and middle speed revolution.The lubricating can last a long period due to the bigger grease storage space inside the bearing.KR...PP curve roller is of contacting sealing structure.The operational temperature is -30??-100??.
KR: Curve rollers/cam follower radically guided by the retaining edge and ring KR..PP: Curve rollers /cam follower with sealing ring
Data sheet of KR,KR..PP:
| Rod Diameter(mm) | Without sealingwith cage | with sealingwith cage | Weight | D | d | C | B | B1 | B2 | G | G1 | g1 | g2 | Nut tightening torque | Cr | Cor Static | ||
| Foreign code | Country code | Foreign code | Country code | Dynamic | ||||||||||||||
| g | mm | Kgf . m | kgf | |||||||||||||||
| 4 | CF 4 B | CF 4 BUU | 7.4 | 12 | 4 | 8 | 20 | 11 | -- | M4X0.7 | 6 | -- | -- | 0.08 | 210 | 220 | ||
| 5 | CF 5 B | KR 13 | CF 5 BUU | KR 13 PP | 10.3 | 13 | 5 | 9 | 23 | 13 | -- | M5X0.8 | 7.5 | -- | -- | 0.23 | 260 | 280 |
| 6 | CF 6 B | KR 16 | CF 6 BUU | KR 16 PP | 18.5 | 16 | 6 | 11 | 28 | 16 | -- | M6X1 | 8 | -- | -- | 0.3 | 370 | 400 |
| 8 | CF 8 B | KR 19 | CF 8 BUU | KR 19 PP | 28.5 | 19 | 8 | 11 | 32 | 20 | -- | M8X1.25 | 10 | -- | -- | 0.8 | 430 | 630 |
| 10 | CF 10 B | KR 22 | CF 10 BUU | KR 22 PP | 45 | 22 | 10 | 12 | 36 | 23 | -- | M10X1.25 | 12 | -- | -- | 1.2 | 550 | 670 |
| CF 10-1 B | KR 26 | CF 10-1 BUU | KR 26 PP | 60 | 26 | 10 | 12 | 36 | 23 | -- | M10X1.25 | 12 | -- | -- | 1.2 | 550 | 670 | |
| 12 | CF 12 B | KR 30 | CF 12 BUU | KR 30 PP | 95 | 30 | 12 | 14 | 40 | 25 | 6 | M12X1.5 | 13 | 6 | 3 | 2.2 | 810 | 900 |
| CF 12-1 B | KR 32 | CF 12-1 BUU | KR 32 PP | 105 | 32 | 12 | 14 | 40 | 25 | 6 | M12X1.5 | 13 | 6 | 3 | 2.2 | 810 | 900 | |
| 16 | CF 16 B | KR 35 | CF 16 BUU | KR 35 PP | 169 | 35 | 16 | 18 | 52 | 32.5 | 8 | M16X1.5 | 17 | 6 | 3 | 5.8 | 1230 | 1560 |
| 18 | CF 18 B | KR 40 | CF 18 BUU | KR 40 PP | 250 | 40 | 18 | 20 | 58 | 36.5 | 8 | M18X1.5 | 19 | 6 | 3 | 8.5 | 1500 | 2500 |
| 20 | CF 20-1 B | KR 47 | CF 20-1 BUU | KR 47 PP | 386 | 47 | 20 | 24 | 66 | 40.5 | 9 | M20X1.5 | 21 | 8 | 4 | 12 | 2110 | 3140 |
| CF 20 B | KR 52 | CF 20 BUU | KR 52 PP | 461 | 52 | 20 | 29 | 66 | 40.5 | 9 | M20X1.5 | 21 | 8 | 4 | 12 | 2110 | 3140 | |
| 24 | CF 24 B | KR 62 | CF 24 BUU | KR 62 PP | 815 | 62 | 24 | 29 | 80 | 49.5 | 11 | M24X1.5 | 25 | 8 | 4 | 22 | 3110 | 3840 |
| CF 24-1 B | KR 72 | CF 24-1 BUU | KR 72 PP | 1140 | 72 | 24 | 29 | 80 | 49.5 | 11 | M24X1.5 | 25 | 8 | 4 | 22 | 3110 | 3840 | |
| 30 | CF 30 B | KR 80 | CF 30 BUU | KR 80 PP | 1870 | 80 | 30 | 35 | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 |
| CF 30-1 B | KR 85 | CF 30-1 BUU | KR 85 PP | 2030 | 85 | 30 | 35 | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 | |
| CF 30-2 B | KR 90 | CF 30-2 BUU | KR 90 PP | 2220 | 90 | 30 | 35 | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 | |
Cam follower KR,KR..PP,CF..B,CF..BUU
