Combined Bearings
Lifting and handling in a economical way.
Precision profiles type PR
Product Information
All profiles are made from high-quality steel UNI FE 510.C Nb, in sandblasted version.
To our Combined Bearing system, we deliver all profiles in fixed length.
All profiles are fine straightened.
Maximum production length 12 m.
Min. clearance between bearing and profile.
Higher load capacity with new Nb-series.
Machined profiles according to customer drawings on request.
Profiles
PR 0 b |
|
weight/m |
9,4 kg |
Wx: |
24 cm3 |
Wy: |
6 cm3 |
ey: |
1,23 cm |
lx: |
126 cm4 |
ly: |
13 cm4 |
PR 1 b |
|
weight/m |
13,4 kg |
Wx: |
41 cm3 |
Wy: |
10 cm3 |
ey: |
1,43 cm |
lx: |
255 cm4 |
ly: |
25 cm4 |
PR 2 b |
|
weight/m |
17,8 kg |
Wx: |
63 cm3 |
Wy: |
13 cm3 |
ey: |
1,47 cm |
lx: |
449 cm4 |
ly: |
36 cm4 |
PR 3 b |
|
weight/m |
24,9 kg |
Wx: |
99 cm3 |
Wy: |
25 cm3 |
ey: |
1,92 cm |
lx: |
795 cm4 |
ly: |
80 cm4 |
PR 4 b |
|
weight/m |
32,1 kg |
Wx: |
148 cm3 |
Wy: |
37 cm3 |
ey: |
2,15 cm |
lx: |
1382 cm4 |
ly: |
138 cm4 |
PR 5 b |
|
weight/m |
36,3 kg |
Wx: |
188 cm3 |
Wy: |
45 cm3 |
ey: |
2,31 cm |
lx: |
1980 cm4 |
ly: |
195 cm4 |
PR 6 b |
|
weight/m |
44,7 kg |
Wx: |
259 cm3 |
Wy: |
53 cm3 |
ey: |
2,32 cm |
lx: |
3117 cm4 |
ly: |
240 cm4 |
Dimentionsing
Q = Load capacity (N)
L = Load distance to suspension point (mm)
P = Suspension point
A = Bearing distance (mm) recommended 500-1000 mm
Formula
Fmax [N] = (Q * L) / (2 * A)
stat.radial
To avoid wear out in the profile, which is not hardened, the pressure between bearing and profile should be max.
Pzul = 860 N/mm² for Nb-profiles (St.0-St.6 + PR0-PR6)
Pzul = 750 N/mm² for all profiles except Nb-series.
Here indicated are F maxstat radial + axial for each bearing.
Selection of bearings over the hertzian pressure
Radial Bearing |
Combined Bearing Axial Bearing fix |
Combined Bearing Axial Bearing adjustable |
Combined Bearing Axial Bearing adjustable |
Combined Bearing with eccentric bearing |
Combined Bearing with combined bolt |
FR KN max. stat. radial |
FA KN max. stat. axial |
Profiles |
||
- |
4.052 P |
- |
- |
- |
- |
0,80 |
0,40 |
A |
- |
- |
- |
4.053 |
- |
- |
- |
- |
5,23 |
1,68 |
S |
- |
- |
(PR) 2.054 |
(PR) 4.054 |
(PR) 4.454 |
(PR) 4.072 |
JC 4.054 |
KB (PR) 4.072 |
9,40 |
3,10 |
0 NB |
PR 0 NB |
- |
(PR) 2.055 |
(PR) 4.055 |
(PR) 4.455 |
(PR) 4.073 |
JC 4.055 |
KB (PR) 4.073 |
11,30 (8,59) |
3,73 (2,86) |
1 NB |
PR 1 NB |
(3018) |
(PR) 2.056 |
(PR) 4.056 |
(PR) 4.456 |
(PR) 4.074 |
JC 4.056 |
KB (PR) 4.074 |
11,72 |
3,87 |
2 NB |
PR 2 NB |
- |
- |
4.057 |
4.057 |
4.075 |
- |
- |
(8,92) |
(2,97) |
- |
- |
(3019) |
(PR) 2.058 |
(PR) 4.058 |
(PR) 4.458 |
(PR) 4.076 |
JC 4.058 |
KB (PR) 4.076 |
20,47 (15.57) |
6,76 (5,19) |
3 NB |
PR 3 NB |
(3020) |
- |
4.059 |
4.059 |
4.077 |
- |
- |
(15,47) |
(5,15) |
- |
- |
(2912) |
- |
4.060 |
4.060 |
4.078 |
- |
- |
(16,49) |
(5,49) |
- |
- |
(3100) |
(PR) 2.061 |
(PR) 4.061 |
(PR) 4.461 |
(PR) 4.0784 |
JC 4.061 |
KB (PR) 4.0784 |
21,68 |
7,16 |
4 NB |
PR 4 NB |
- |
(PR) 2.062 |
(PR) 4.062 |
(PR) 4.462 |
(PR) 4.079 |
JC 4.062 |
KB (PR) 4.079 |
30,92 (23,52) |
10,20 (7,84) |
5 NB |
PR 5 NB |
(3353) |
(PR) 2.063 |
(PR) 4.063 |
(PR) 4.463 |
- |
JC 4.063 |
- |
54,02 |
17,80 |
6 NB |
PR 6 NB |
- |
- |
- |
- |
(PR) 4.080 |
- |
KB (PR) 4.080 |
37,81 |
17,80 |
6 NB |
PR 6 NB |
- |
- |
- |
4.089 |
- |
- |
- |
41,71 |
13,91 |
10 |
- |
- |
- |
- |
4.090 |
- |
- |
- |
58,00 |
19,40 |
16 |
- |
- |
- |
- |
4.091 |
- |
- |
- |
84,00 |
28,00 |
18 |
- |
- |
- |
- |
4.092 |
- |
- |
- |
101,50 |
33,90 |
28 |
- |
- |
- |
- |
4.093 |
- |
- |
- |
139,40 |
46,50 |
36 |
42 |
- |