Reasons to choose Guomai Bearings as your independent needle roller/rolling bearings partner
1. Bearing designing: Guomai has our own bearing R&D team and adopts Germany technology. This enables us to provide OEM and ODM service to you.
2. Production process: We strictly follow the 5S production process and acquired ISO9001:2008 quality management system certificate. Besides, we introduced from abroad world famous brands lathes and heat treatment equipment, this enables us to provide high precision bearings with similar quality to world famous brands such as SKF, ,TIMKEN,NSK,NTN,KOYO,NACHI and so on.
3. Materials: To ensure the high quality of bearings, we use high carbon chrome bearing steel which provides high rigidity, and high resistance to abrasive wear to produce the bearings. Low carbon cold rolled steel and low carbon stainless steel is also used according to customers' requirements.
4. Quality inspection: All bearings will be strictly tested before packing. We have Taylor talysurf, hardness meter,clearance detector,vibration(speed) measuring instrument,roundness instrument to guarantee all bearings are qualified with the standards.
5. Lubricants: Suitable lubricants are used to protect the bearings from oxidation or corrosion of parts thus enable our bearings with longer lifetime, low noise and better high temperature performance. Selection of lubricants is generally governed by the bearing application. Right choice of high quality lubricants could prevent metal to metal contact and conduct heat away from the bearings.
6. Packing: Guomai bearings pay attention to every detail in the bearing production process. We adopt plastic bag, Kraft paper, thick paper box and cartons to protect the bearings from unexpectable damage during the transportation and warehouse stock.
7. Factory direct marketing: We are the factory and not the distributor or trading agent, so we could provide the same quality with competitive price.
What is Cam Follower Needle Roller Bearing?
1.KR design cam followers are fitted with a needle roller and cage assembly. They are also available with a full complement needle roller set, which is identified by the letter V at the end of the basic designation. The outer ring is axially guided by the pressed-on flange ring and the head of the stud, which also serves as an integral flange.Cam follower needle track roller bearing Wheel and pin bearing needle bearing2. KR design cam followers without a designation suffix or with the designation suffix B have a narrow gap between the outer ring and the two flanges that serves as a gap-type seal.Cam follower needle track roller bearing Wheel and pin bearing needle bearing 3. KR design cam followers are also available with an axial sliding ring made of PA66 on both sides, identified by the designation suffix PPA , PPSKA or PPXA. In the radial direction, the sliding ring forms a narrow labyrinth seal with the outer ring to protect against coarse contaminants. In the axial direction, the sliding ring serves as a contact seal to reliably retain grease in the bearing. This improves the lubrication conditions in the bearing, keeps friction and frictional heat low, and extends grease life.Cam follower needle track roller bearing Wheel and pin bearing needle bearingBearing feature:
Instead of an inner ring, cam followers have a solid stud (pin) that is threaded so that the cam follower can be quickly and easily attached to appropriate machine components by means of a hexagonal nut.
All three cam follower designs have the same main dimensions. The differences are in their internal design, which make them suitable for various operating conditions. In contrast to ball and roller bearings, where the bearing size refers to the bore diameter d, for cam followers the size refers to their outside diameter D.
All designs are available with a concentric seat (fig. 1) or an eccentric collar (fig. 2) on the stud. An eccentric collar, which has a shrink-fit onto the stud, enables less stringent positioning tolerances to be specified for associated components. The values for the adjustable eccentricity are listed in the product tables. An eccentric collar is identified by the letter E at the end of the basic designation.Stud type track roller (cam follower) - KR- crowned OD- cylindrical OD is avaible , suffix " X "- hex wrench socket in stud head- full needle rollers design is also available ( prefix " KRV " ) - stainless steel 440C is also available ( prefix " SS " ) - two shields is also avaialbe ( suffix " PP " ) Cam follower needle track roller bearing Wheel and pin bearing needle bearingApplication of needle roller cam followers bearings:Escalator;Moving sidewalk;Elevator;Conveyor system;Lifting machinery;Automotive line machinery;Material handling equipments;Linear motion guidance equipments;Cam drives;Screw drivesCam Follower Needle Roller/rolling Bearings Specification
Shaft Dia. | Bearing Number | Boundary Dimension | Nuts Tightening Torque | Basic Load |
Without Seals With Retainer | With Seals With Retainer | Weight | D | d | C | B | B1 | B2 | G | G1 | g1 | g2 | Cr Dynamic | Cor Static |
mm | ISO | China | ISO | China | g | mm | kgf m | kgf |
4 | CF4B | NAKD12 | CF4BUU | | 7.4 | 12 | 4 | 8 | 20 | 11 | | M4X0.7 | 6 | | | 0.08 | 210 | 220 |
5 | CF5B | NAKD13 | CF5BUU | KR13PP | 10.3 | 13 | 5 | 9 | 23 | 13 | | M5X0.8 | 7.5 | | | 0.23 | 260 | 280 |
6 | CF6B | NAKD16 | CF6BUU | KR16PP | 18.5 | 16 | 6 | 11 | 28 | 16 | | M6X1 | 8 | | | 0.3 | 370 | 400 |
8 | CF8B | NAKD19 | CF8BUU | KR19PP | 28.5 | 19 | 8 | 11 | 32 | 20 | | M8×1.25 | 10 | | | 0.8 | 430 | 630 |
10 | CF10B | NAKD22 | CF10BUU | KR22PP | 45 | 22 | 10 | 12 | 36 | 23 | | M10X1.25 | 12 | | | 1.2 | 550 | 670 |
CF10-1B | NAKD26 | CF10-1BUU | KR26PP | 60 | 26 | 10 | 12 | 36 | 23 | | M10X1.25 | 12 | | | 1.2 | 550 | 670 |
12 | CF12B | NAKD30 | CF12BUU | KR30PP | 95 | 30 | 12 | 14 | 40 | 25 | 6 | M12X1.5 | 13 | 6 | 3 | 2.2 | 810 | 900 |
CF12-1B | NAKD32 | CF12-1BUU | KR32PP | 105 | 32 | 12 | 14 | 40 | 25 | 6 | M12X1.5 | 13 | 6 | 3 | 2.2 | 810 | 900 |
16 | CF16B | NAKD35 | CF16BUU | KR35PP | 169 | 35 | 16 | 18 | 52 | 32.5 | 8 | M16X1.5 | 17 | 6 | 3 | 5.8 | 1230 | 1560 |
18 | CF18B | NAKD40 | CF18BUU | KR40PP | 250 | 40 | 18 | 20 | 58 | 36.5 | 6 | M18X1.5 | 19 | 6 | 3 | 8.5 | 1500 | 2500 |
20 | CF20-1B | NAKD47 | CF20-1BUU | KR47PP | 386 | 47 | 20 | 24 | 66 | 40.5 | 9 | M20X1.5 | 21 | 8 | 4 | 12 | 2110 | 3140 |
CF20B | NAKD52 | CF20BUU | KR52PP | 461 | 52 | 20 | 29 | 66 | 40.5 | 9 | M20X1.5 | 21 | 8 | 4 | 12 | 2110 | 3140 |
24 | CF24B | NAKD62 | CF24BUU | KR62PP | 815 | 62 | 24 | 29 | 80 | 49.5 | 11 | M24X1.5 | 25 | 8 | 4 | 22 | 3110 | 3840 |
CF24-1B | NAKD72 | CF24-1BUU | KR72PP | 1140 | 72 | 24 | 29 | 80 | 49.5 | 11 | M24X1.5 | 25 | 8 | 4 | 22 | 3110 | 3840 |
30 | CF30B | NAKD80 | CF30BUU | KR80PP | 1870 | 80 | 30 | 35 | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 |
CF30-1B | NAKD85 | CF30-1BUU | KR85PP | 2030 | 85 | 30 | 35 | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 |
CF30-2B | NAKD90 | | | 2220 | 90 | 30 | | 100 | 63 | 15 | M30X1.5 | 32 | 8 | 4 | 46 | 4630 | 6300 |
Bearing Detailed Pictures
CF20-1(KR47) Detailed Pictures
About Shandong Guomai Bearing
About Guomai Bearing Factory
Shandong Guomai Bearing Co.,Ltd(hereinafter referred to as Guomai) was established in 1999, with more than 20 years of bearing research and manufacturing experience. The factory covers an area of 16000 square meters,7000 of which is manufacturing area and the other is office and warehouse. Guomai has large stock for normally used bearing models and this enables us to deliver the bearing to customers within the shortest time.
There are total 160 staffs, 6 automatic bearing assembly lines,116 CNC machines and 22 sets of precise inspection instruments. We not only have our own R&D team but also cooperate with Henan University of Science and Technology, Luoyang Bearing Research Institute to develop new bearing designing and manufacturing technology.
In addition to conventional bearings, Guomai also provides OEM and ODM service to our respectable customers to meet their individual requirements.We introduced advanced milling, turning machines, heat treatment equipment and bearing testing machines to guarantee the quality of the bearings because we know "Quality is the life of Guomai" .Now our top products include taper roller bearing, angular contact ball bearing, deep groove bearing ,spherical bearing and cylindrical roller bearing with P5, P4 accuracy grade.
After so many years of developing, Guomai has built up an excellent sales network within China. Our two bearing brands "CVZ" and "Bentu" are well known and have high reputation within the industrial equipment and components field. Moreover, with confidence of our bearing quality, we started to export our bearings 4 years ago. Customers from Europe, North America, Middle East, Southeast Asia and Africa have enjoyed the happiness our bearings brought to them.
Guomai Bearing always upholds "WIN-WIN" spirit and believes in "Details determine success" philosophy, and keep improving bearing quality in the past 20 years. Some series of our bearings have similar quality with SKF, NSK, Timken, NACHI, KOYO, NTN and other world famous brands but with lower price.
Looking to the future, Guomai will insist on the technology innovation and processing levels to provide the most appropriate bearing products and service to our customers.
Workshop View
Exhibition
CF30-2B NAKD90 CF4BUU CF5BUU KR13PP CF6BUU KR16PP CF8BUU KR19PP CF10BUU KR22PP CF10-1BUU KR26PP CF12BUU KR30PP CF12-1BUU KR32PP CF16BUU KR35PP CF18BUU KR40PP CF20-1BUU KR47PP CF20BUU KR52PP CF24BUU KR62PP CF24-1BUU KR72PP CF30BUU KR80PP CF30-1BUU KR85PP CF30-2BUU KR90PP CF4 CF5 CF6 CF8 CF10 CF10-1 CF12 CF12-1 CF16 CF18 CF20 CF20-1 CF24 CF24-1 CF30 CF30-1 CF30-2 KR13 KR16 KR19 KR22 KR26 KR30 KR32 KR35 KR40 KR47 KR52 KR62 KR72 KR80 KR85 KR90 KRV13 KRV KRV16 KRV30 KRV32 KRV35 KRV40 KRV47 KRV52 KRV62 KRV72 KRV80 KRV85 KRV90 KRV13PP KRV16PP KRV19PP KRV22PP KRV26PP KRV30PP KRV32PP KRV35P KRVP KRVP KRVP KRVP KRVP KRVP K52P KVP KRVP K52P KRVP KVP85