Cylindrical Cam Followers And Track Rollers NATR...PPX Eccentric
Cam Followers With Seals
Cam Followers, also known as Track Rollers, are specialized bearing
units consisting of machined thick-walled outer rings, needle or
cylindrical rollers, cage-guided or fully loaded rolling element
groups, inner rings or bolts, and seals. These bearings feature a
cylindrical or arc-shaped outer ring design with thick walls,
allowing rollers to move directly on the raceway for exceptional
heavy-load capacity.
Engineered for compactness, high rotation accuracy, and easy
installation, cam followers are available in multiple
configurations to suit diverse application requirements. They excel
in environments requiring both high radial loads and impact
resistance.
Specifications:| Bearing Code | Shaft Diameter (mm) | Unit Weight kg | Dimensions (mm) | Load Rating kN | Limit Speed (rpm) |
| d | D | B | C | d1 | Dynamic | Static |
|
| NATR 5 | NATR 5PP | 5 | 0.014 | 5 | 16 | 12 | 11 | 12 | 3.1 | 3 | 22000 |
| NATV 5 | NATV 5PP | 0.015 | 5 | 16 | 12 | 11 | 12 | 4.5 | 6.3 | 8500 |
| NATR 6 | NATR 6PP | 6 | 0.020 | 6 | 19 | 12 | 11 | 14 | 3.6 | 3.7 | 20000 |
| NATV 6 | NATV 6PP | 0.021 | 6 | 19 | 12 | 11 | 14 | 5.7 | 8.7 | 7000 |
| NATR 8 | NATR 8PP | 8 | 0.041 | 8 | 24 | 15 | 14 | 19 | 4.5 | 5.4 | 13000 |
| NATV 8 | NATV 8PP | 0.042 | 8 | 24 | 15 | 14 | 19 | 8.6 | 12 | 5500 |
| NATR 10 | NATR 10PP | 10 | 0.064 | 10 | 30 | 15 | 14 | 23 | 6.1 | 7.8 | 11000 |
| NATV 10 | NATV 10PP | 0.065 | 10 | 30 | 15 | 14 | 23 | 10.9 | 17 | 4500 |
| NATR 12 | NATR 12PP | 12 | 0.071 | 12 | 32 | 15 | 14 | 25 | 6.6 | 9.8 | 9000 |
| NATV 12 | NATV 12PP | 0.072 | 12 | 32 | 15 | 14 | 25 | 11.8 | 19 | 3900 |
| NATR 15 | NATR 15PP | 15 | 0.103 | 15 | 35 | 19 | 18 | 27 | 10.5 | 17.5 | 7000 |
| NATV 15 | NATV 15PP | 0.105 | 15 | 35 | 19 | 18 | 27 | 16 | 32.5 | 3400 |
| NATR 17 | NATR 17PP | 17 | 0.144 | 17 | 40 | 21 | 20 | 32 | 11.8 | 19.4 | 6000 |
| NATV 17 | NATV 17PP | 0.152 | 17 | 40 | 21 | 20 | 32 | 19.6 | 37 | 2900 |
| NATR 20 | NATR 20PP | 20 | 0.264 | 20 | 47 | 25 | 24 | 37 | 17.5 | 29.8 | 4900 |
| NATV 20 | NATV 20PP | 0.254 | 20 | 47 | 25 | 24 | 37 | 25.8 | 57 | 2600 |
| NATR 25 | NATR 25PP | 25 | 0.275 | 25 | 52 | 25 | 24 | 42 | 19.5 | 36.5 | 3600 |
| NATV 25 | NATV 25PP | 0.285 | 25 | 52 | 25 | 24 | 42 | 29.0 | 69.6 | 2100 |
| NATR 30 | NATR 30PP | 30 | 0.470 | 30 | 62 | 29 | 28 | 51 | 31.0 | 57.5 | 2600 |
| NATV 30 | NATV 30PP | 0.481 | 30 | 62 | 29 | 28 | 51 | 45.5 | 104 | 1700 |
| NATR 35 | NATR 35PP | 35 | 0.635 | 35 | 72 | 29 | 28 | 58 | 34.5 | 67.5 | 2000 |
| NATV 35 | NATV 35PP | 0.647 | 35 | 72 | 29 | 28 | 58 | 50.8 | 109.5 | 1400 |
| NATR 40 | NATR 40PP | 40 | 0.805 | 40 | 80 | 32 | 30 | 66 | 47.0 | 91.5 | 1700 |
| NATV 40 | NATV 40PP | 0.890 | 40 | 80 | 32 | 30 | 66 | 64.0 | 139 | 1300 |
| NATR 45 | NATR 45PP | 45 | 0.910 | 45 | 85 | 32 | 30 | 72 | 49.1 | 98 | 1500 |
| NATV 45 | NATV 45PP | 0.935 | 45 | 85 | 32 | 30 | 72 | 66.0 | 153 | 1100 |
| NATR 50 | NATR 50PP | 50 | 0.860 | 50 | 90 | 32 | 30 | 76 | 50.5 | 106 | 1300 |
| NATV 50 | NATV 50PP | 0.990 | 50 | 90 | 32 | 30 | 76 | 69.5 | 187 | 1000 |
NATR, NATV series bearings are available with cylinderical outer
ring. Adding the suffix "X", e.g. NATR 35 X, NATV35 PPX
Product Series Classification
Cam Followers Track Rollers are categorized by structural
characteristics:
- Without axial guidance series
- With axial guidance series
- With bolted shafts (stud type)
The axial guidance series incorporates thrust washers for axial
load support, including NATR (with cage), NATV (fully loaded needle
roller structure for heavy-duty applications), and NUTR models.
Product Features
High radial and axial load capacity
Sturdy guide rails suitable for high dynamic and static loads
Optimal load distribution across guide rails
Extended service life for bearings and guide rails
Easy replacement of bearing components
Usage Questions & Answers
What's the difference between NATR.., NATR..PP, and NATR..PPX?
PP is round shape with seals on both ends, PPX means cylindrical
shape with seals on both ends.
Where are cam followers used?
Widely applied in machine tools, metallurgical machinery, textile
machinery, printing machinery, and processing assembly lines.
Why choose cam follower track rollers over other bearing types?
Specifically engineered for track operations, transmission devices,
and conveyor systems where direct rolling on raceways is required.
How to select cam follower sizes?
Determine by inner diameter, which specifies the compatible shaft
diameter for installation.
Proper Installation Procedure
Step 1: Lubrication
Apply lubricating grease or oil to the lubrication groove, ensuring
complete coverage of rolling surfaces.
Step 2: Inner ring tight fit
Use a sleeve to press evenly onto the shaft, avoiding tilting
during installation.
Step 3: Outer ring loose fit
Press directly into seat hole, using a copper rod to distribute
impact force when hammering.
Purchasing Guide
- Load bearing capacity: Evaluate radial and axial load requirements as different models
vary significantly
- Swing angle: Consider models with larger deflection angles for applications
requiring substantial angular movement
- Material selection: Inner and outer ring materials directly impact wear resistance and
operational lifespan
- Lubrication method: Choose between pre-lubricated designs or regular maintenance
models based on maintenance cycle preferences
Self Lubricated Black Oxide Treated Yoke Type Cam Followers for Industrial Heavy Duty Applications
