BOSCH REXROTH
R159002030
$643.27 USD
- BOSCH REXROTH
- Material:R159002030
- Model:LAF-B-A20
Quantity in stock: 0
The Bosch Rexroth BEARING LAF-B-A 20 (R159002030) is a high-precision fixed bearing unit designed for robust performance in linear motion applications. This assembly group bearing unit, belonging to the LAF series, features a size 20 angular contact thrust ball bearing LGF and is accompanied by a slotted nut NMA or NMZ, making it suitable for screw end types A. The BEARING LAF-B-A 20 is engineered to provide excellent rigidity against tilting with its Rkl specification and maintains a high degree of axial rigidity marked as RFB. This bearing unit is characterized by its dynamic load capacity (C) and static load capacity (Co), ensuring it can handle the demands of various loading conditions as outlined in the general technical notes and information for bearings provided by Bosch Rexroth. It also includes project planning notes that are essential for proper application use. The outer diameter (D) and size (d) specifications denote the physical dimensions of the bearing, which is crucial when considering compatibility with existing systems. The BEARING LAF-B-A 20 has been designed with a specific hole pattern BB for mounting, with a minimum number of mounting holes required for secure installation. The mounting holes 't' specification further assists in ensuring a proper fit during assembly. Additionally, this product's frictional torque with seal (MRb) indicates its efficiency and smooth operation when integrated into machinery. As part of the accessories offered for Rexroth ball screw assemblies, this fixed bearing unit comes with an assurance of quality and compatibility with other components in the system. It serves as an essential element in applications requiring precise linear guidance and load support, thanks to its well-defined static and dynamic load ratings along with its limit speed grease nmax specification which dictates its maximum rotational speed capability when lubricated with grease. The weight specification underlines the product’s mass which is an important factor during transportation and installation processes.
Assembly group bearing unit LAF, size 32 x 5/10/20/32/64
The fixed bearing consists of: Angular-contact thrust ball bearing LGF, slotted nut NMA or NMZ. Suitable for screw end type◡51, 51A, 52, 52A, 81, 81A, 82, 82A, 91, 91A, 92, 92A
Unpacked Weight: 0.679 kg
Fixed bearing with angular-contact thrust ball bearing LGF
Double-thrust, screw-down,
series LGF-B-…
series LGF-A-…
Double-thrust, screw-down,
series LGF-C-…
| The fixed bearing consists of: |
| Angular-contact thrust ball bearing LGF |
| Slotted nut NMA or NMZ |
| Suitable for screw end form 51, 51A, 52, 52A, 81, 81A, 82, 82A, 91, 91A, 92, 92A |
| Data Sheet | Download Data Sheet |
| 3D CAD | Download 3D CAD |
| 3D CAD | Download 3D CAD |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Productgroup ID | 17 |
| Footnote dynamic load capacity C | Load on bearing (see general technical notes and information for bearings, "Project planning notes") |
| Rigidity against tilting Rkl | 140 |
| Limit speed (grease) nmax | 3000 |
| Outer diameter D | 68 |
| Size d | 20 |
| Size J | 53 |
| Min. number of mounting holes | 4 |
| Mounting holes t | 90 |
| Size D | 68 |
| Bearing frictional torque with seal MRb | 0.3 |
| Footnote static load capacity C0 | Load on bearing (see general technical notes and information for bearings, "Project planning notes") |
| Rigidity of the bearing (axial) RFB | 650 |
| Hole pattern | BB1 |
| Static load rating C0 | 47000 |
| Dynamic load capacity C | 26000 |
| Footnote mass m | R159002030 |
| Accessories for screw drives | Bearings |
| Size B | 28 |
| Weight | 0.679 |
| Nominal size | 32 x 5/10/20/32/64 |
Technical data for bearings
|
Size |
C |
C0 |
MRb |
Rfb |
Rkl |
nmax |
Mass |
|
d0 x P |
N |
N |
Nm |
N/μm |
Nm/mrad |
rpm |
kg |
| 20 x 5/10/20/40 | 17000 1) | 24700 1) | 0.16 | 375 | 50 | 3800 | 0.385 |
| 25 x 5/10/25 | 18800 1) | 31000 1) | 0.24 | 450 | 80 | 3300 | 0.485 2) |
| 0.52 3) | |||||||
| 32 x 5/10/20/32/64 | 26000 1) | 47000 1) | 0.3 | 650 | 140 | 3000 | 0.645 4) |
| 0.74 5) | |||||||
| 40 x 5 | 29000 1) | 64000 1) | 0.5 | 850 | 300 | 2200 | 0.855 6) |
| 0.98 7) | |||||||
| 40 x 10/12/16/20/40 | 44500 1) | 111000 1) | 0.6 | 1300 | 450 | 2600 | 1.6 |
| 50 x 5 | 41000 1) | 89000 1) | 900 | 400 | 2000 | 1.36 | |
| 50 x 10/12/16/20/25/40 | 47500 | 127000 | 0.75 | 1500 | 620 | 2200 | 1.76 |
| 63 x 10/20/40 | 72000 1) | 149000 1) | 1.3 | 1200 | 750 | 1600 | 2.5 |
| 80 x 10/20 | 113000 1) | 250000 1) | 2.6 | 1400 | 1500 | 1200 | 5.13 |
| 1) | Load on bearing (see general technical notes and information for bearings, “Project planning notes”) |
| 2) | R159001700 |
| 3) | R159001730 |
| 4) | R159002000 |
| 5) | R159002030 |
| 6) | R159003000 |
| 7) | R159003030 |
Legend
|
Symbol |
Description |
Unit |
|
d0 |
Nominal diameter |
|
|
P |
Lead |
|
|
C |
Dynamic load capacity |
N |
|
C0 |
Static load capacity |
N |
|
MRb |
Frictional torque of bearing with seal |
Nm |
|
Rfb |
Rigidity of the bearing (axial) |
N/μm |
|
Rkl |
Rigidity against tilting |
Nm/mrad |
|
nmax |
Limit speed (grease) |
min⁻¹ |
Suitable for screw ends: Form
|
51 51A |
|
81 81A |
|
91 91A |
|
|
52 52A |
|
82 82A |
|
92 92A |
|
| 1) | LGF-B-…with slotted nut NMA, LGF-A-…with slotted nut NMA |
| 2) | LGF-C-…with slotted nut NMA |
| 3) | LGF-B-…with slotted nut NMZ |
Dimensions
|
Size |
Dimensions |
Connection dimensions |
Mounting holes |
||||||||||
|
d0 x P |
d |
D |
B |
B1 |
J |
Da min. |
Da max. |
da min. |
da max. |
Minimum number |
d3 |
t |
Hole pattern |
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
° |
||||||
| 20 x 5/10/20/40 | 12 mm -0.01 | 55 mm -0.013 | 25 mm -0.25 | 17 | 42 | 30 | 33 | 16 | 29 | 3 | 6.8 | 120 | BB1 |
| 25 x 5/10/25 | 17 mm -0.01 | 62 mm -0.013 | 48 | 34 | 37 | 23 | 33 | ||||||
| 32 x 5/10/20/32/64 | 20 mm -0.01 | 68 mm -0.013 | 28 mm -0.25 | 19 | 53 | 40 | 43 | 25 | 39 | 4 | 90 | ||
| 40 x 5 | 30 mm -0.01 | 80 mm -0.013 | 63 | 50 | 53 | 40 | 49 | 6 | 60 | ||||
| 40 x 10/12/16/20/40 | 25 mm -0.005 | 75 mm -0.01 | 56 mm -0.5 | 47 | 58 | 45 | 48 | 32 | 44 | 7 | 6.5 | 45 | BB2 |
| 50 x 5 | 35 mm -0.01 | 90 mm -0.015 | 34 mm -0.25 | 25 | 75 | 59 | 62 | 45 | 58 | 8.8 | 90 | BB1 | |
| 50 x 10/12/16/20/25/40 | 30 mm -0.005 | 80 mm -0.01 | 56 mm -0.5 | 47 | 63 | 50 | 53 | 40 | 49 | 11 | 6.5 | 30 | BB2 |
| 63 x 10/20/40 | 40 mm -0.01 | 115 mm -0.015 | 46 mm -0.25 | 36 | 94 | 71 | 80 | 56 | 70 | 12 | 8.5 | BB1 | |
| 80 x 10/20 | 50 mm -0.005 | 140 mm -0.01 | 54 mm -0.25 | 45 | 113 | 88 | 100 | 63 | 87 | 10.5 | |||
Legend
|
Symbol |
Description |
|
d0 |
Nominal diameter |
|
P |
Lead |