Track Rollers KRV...PP Full Complement Needle Roller Bearing Stud Type 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.
| Bearing Code |
Shaft Diameter (mm) |
Dimensions (mm) |
Load Rating kN |
Limit Speed (rpm) |
Unit Weight kg |
| D |
C |
d1 |
B |
B2 |
B3 |
G |
G1 |
M |
M1 |
C1 |
d2 |
Dynamic |
Static |
| KR 13 |
KRV 13 |
5 |
13 |
9 |
5 |
23 |
13 |
- |
M5x0.8 |
8 |
4 |
- |
0.6 |
12 |
2.55 |
2.74 |
3800 |
0.010 |
| KRV 13PP |
13 |
9 |
5 |
23 |
13 |
- |
M5x0.8 |
8 |
4 |
- |
0.6 |
12 |
2.55 |
2.74 |
3800 |
0.010 |
| KR16 |
KR 16PP |
6 |
16 |
11 |
6 |
28 |
16 |
- |
M6x1 |
8 |
4 |
- |
0.6 |
12 |
3.63 |
3.92 |
12000 |
0.018 |
| KRV 16PP |
16 |
11 |
6 |
28 |
16 |
- |
M6x1 |
8 |
4 |
- |
0.6 |
12 |
3.63 |
3.92 |
3800 |
0.020 |
| KR19 |
KR 19PP |
8 |
19 |
11 |
8 |
32 |
20 |
- |
M8x1.25 |
10 |
4 |
- |
0.6 |
14 |
4.21 |
6.17 |
9000 |
0.028 |
| KRV 19PP |
19 |
11 |
8 |
32 |
20 |
- |
M8x1.25 |
10 |
4 |
- |
0.6 |
14 |
4.21 |
6.17 |
3100 |
0.032 |
| KR 22 |
KR 22PP |
10 |
22 |
12 |
10 |
36 |
23 |
- |
M10x1.25 M10x1 |
12 |
4 |
- |
0.6 |
17 |
5.39 |
6.57 |
7000 |
0.042 |
| KRV 22PP |
22 |
12 |
10 |
36 |
23 |
- |
12 |
4 |
- |
0.6 |
17 |
5.39 |
6.57 |
2600 |
0.045 |
| KR 26 |
KR 26PP |
10 |
26 |
12 |
10 |
36 |
23 |
- |
M10x1 M10x1.25 |
12 |
4 |
- |
0.6 |
17 |
5.39 |
6.57 |
7000 |
0.058 |
| KRV 26PP |
26 |
12 |
10 |
36 |
23 |
- |
12 |
4 |
- |
0.6 |
17 |
5.39 |
6.57 |
2600 |
0.061 |
| KR 30 |
KR 30PP |
12 |
30 |
14 |
12 |
40 |
25 |
6 |
M12x1.5 |
13 |
6 |
3 |
0.6 |
23 |
7.94 |
8.82 |
5500 |
0.087 |
| KRV 30PP |
30 |
14 |
12 |
40 |
25 |
6 |
M12x1.5 |
13 |
6 |
3 |
0.6 |
23 |
7.94 |
8.82 |
2100 |
0.089 |
| KR 32 |
KR 32PP |
12 |
32 |
14 |
12 |
40 |
25 |
6 |
M12x1.5 |
13 |
6 |
3 |
0.6 |
23 |
7.94 |
8.82 |
5500 |
0.098 |
| KRV 32PP |
32 |
14 |
12 |
40 |
25 |
6 |
M12x1.5 |
13 |
6 |
3 |
0.6 |
23 |
7.94 |
8.82 |
2100 |
0.1 |
| KR 35 |
KR 35PP |
16 |
35 |
18 |
16 |
52 |
32.5 |
8 |
M16x1.5 |
17 |
6 |
3 |
0.8 |
27 |
12.05 |
15.3 |
3600 |
0.169 |
| KRV 35PP |
35 |
18 |
16 |
52 |
32.5 |
8 |
M16x1.5 |
17 |
6 |
3 |
0.8 |
27 |
12.05 |
15.3 |
1600 |
0.171 |
| KR 40 |
KR 40PP |
18 |
40 |
20 |
18 |
58 |
36.5 |
8 |
M18x1.5 |
19 |
6 |
3 |
0.8 |
32 |
14.7 |
24.5 |
2900 |
0.247 |
| KRV 40PP |
40 |
20 |
18 |
58 |
36.5 |
8 |
M18x1.5 |
19 |
6 |
3 |
0.8 |
32 |
14.7 |
24.5 |
1400 |
0.249 |
| KR 47 |
KR 47PP |
20 |
47 |
24 |
20 |
66 |
40.5 |
9 |
M20x1.5 |
21 |
8 |
4 |
0.8 |
37 |
20.7 |
30.8 |
2400 |
0.386 |
| KRV 47PP |
47 |
24 |
20 |
66 |
40.5 |
9 |
M20x1.5 |
21 |
8 |
4 |
0.8 |
37 |
20.7 |
30.8 |
1200 |
0.390 |
| KR 52 |
KR 52PP |
20 |
52 |
24 |
20 |
66 |
40.5 |
9 |
M20x1.5 |
21 |
8 |
4 |
0.8 |
37 |
20.7 |
30.8 |
2400 |
0.461 |
| KRV 52PP |
52 |
24 |
20 |
66 |
40.5 |
9 |
M20x1.5 |
21 |
8 |
4 |
0.8 |
37 |
20.7 |
30.8 |
1200 |
0.465 |
| KR 62 |
KR 62PP |
24 |
62 |
29 |
24 |
80 |
49.5 |
11 |
M24x1.5 |
25 |
8 |
4 |
0.8 |
44 |
30.5 |
37.6 |
1900 |
0.815 |
| KRV 62PP |
62 |
29 |
24 |
80 |
49.5 |
11 |
M24x1.5 |
25 |
8 |
4 |
0.8 |
44 |
30.5 |
37.6 |
1100 |
0.820 |
| KR 72 |
KR 72PP |
24 |
72 |
29 |
24 |
80 |
49.5 |
11 |
M24x1.5 |
25 |
8 |
4 |
0.8 |
44 |
30.5 |
37.6 |
1900 |
1.140 |
| KRV 72PP |
72 |
29 |
24 |
80 |
49.5 |
11 |
M24x1.5 |
25 |
8 |
4 |
0.8 |
44 |
30.5 |
37.6 |
1100 |
1.150 |
| KR 80 |
KR 80PP |
30 |
80 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
1300 |
1.870 |
| KRV 80PP |
80 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
850 |
1.880 |
| KR 85 |
KR 85PP |
30 |
85 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
1300 |
2.030 |
| KRV 85PP |
85 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
850 |
2.040 |
| KR 90 |
KR 90PP |
30 |
90 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
1300 |
2.220 |
| KRV 90PP |
90 |
35 |
30 |
100 |
63 |
15 |
M30x1.5 |
32 |
8 |
4 |
1 |
53 |
45.4 |
61.7 |
850 |
2.230 |
KR series bearings are available with cylindrical outer ring. Adding the suffix "X", e.g. KR 35 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 KR.. KR..PP, and KRV..PP?
KRV..PP is full complement roller type, with seals on both sides. KR..PP is in steel cage with seals, KR is in steel cage without seals.
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
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