BOSCH REXROTH
R161952500
$62.51 USD
- BOSCH REXROTH
- Material:R161952500
- Model:LUBRICATING UNIT 55
Quantity in stock: 0
The Bosch Rexroth LUBRICATING UNIT 55 (R161952500) is a specialized maintenance component designed to enhance the longevity and performance of profiled rail systems. This front lube unit, tailored for ball rail systems, ensures that ball runner blocks are consistently lubricated, allowing for travel distances of up to 5,000 km without the need for relubrication. The unit is particularly beneficial as it only requires initial lubrication with grease and can be refilled either through the lube nipple on its endface or at the side, making maintenance straightforward and minimizing downtime. The LUBRICATING UNIT 55 is compatible with various sizes of Bosch Rexroth's profiled rail systems, including Size H and Size K. It boasts a low lubricant loss feature which translates into reduced oil consumption over time. The unit's design eliminates the need for lubrication lines and focuses on delivering lubricant directly where it is needed: on the running tracks and top surface of the Ball Guide Rail. This precision ensures optimal functioning of the system components and contributes to overall efficiency. Constructed from a special plastic material, this front lube unit comes in different configurations; some models like R... are pre-filled with Mobil SHC oil while others are shipped empty to be filled according to user requirements. It operates effectively within an operating temperature range up to 100°C and has been engineered to ensure tight sealing against contaminants. This accessory is essential for users who require reliable linear motion guidance with minimal maintenance intervention. Its innovative design significantly extends intervals between required lubrications, thereby supporting continuous machine operation in various applications where profiled rail systems are utilized.
Front lube unit (KSF) - 55
Front lube unit for ball rail systems
Size 55
Unpacked Weight: 0.134 kg
Possible travel distance with front lube units
Previous travel distance s
A With oil lubrication to 500 km B With grease lubrication to 1000 km
Possible travel distance s
C With front lube units to 10,000 km|
Size |
15 | 20 | 25 | 30 | 35 | 45 | 55 | 65 | |
|
possible travel distance s with front lube units |
km |
10000 | 1500 | 1000 | |||||
Compare oil consumption for size 25
|
Front lube units |
Amount of lubricant oil per lubrication cycle |
Travel distance s |
Lubricant oil consumption absolute |
Lubricant oil consumption in comparison |
|
cm³ |
km |
cm³/km |
% |
|
|
without |
1,2 |
20 |
0,06 |
100,00 |
|
with |
5,2 |
5000 |
0,00104 |
1,73 |
Lubricant distribution
Due to the special lubricant distribution construction, lubrication primarily takes place where it is needed: directly on the running tracks and the top surface of the Ball Guide Rail.
1 Top surface of the ball guide rail
2 Running tracks of the ball bearing guide
3 Oil tank
4 Seals
Front lube unit R1619 2. 00
Material:
special plastic
The front lube units R1619 .2. 00 are already filled with oil (Mobil SHC 639) and can be mounted after basic lubrication of the Ball Runner Block.
Front lube unit R1619 2. 10
Material:
special plastic
The front lube units R1619 2. 10 are left empty at the factory.
| For a travel distance of up to 25,000 km without re-lubrication |
| Ball runner block only requires initial lubrication with grease |
| Front lube units on both sides of the ball runner block |
| Low lubricant loss |
| Reduced oil consumption |
| No lubrication lines |
| Front lube unit can be refilled using the lube nipple on the end-face or at the side. |
| Lube connection on the end-face of the front lube unit is suitable for lubricating the ball runner block with grease. |
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| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Size H (profiled rail system) | 70 |
| Size K2 (profiled rail systems) | 8 |
| Oil quantity | 14.5 |
| Productgroup ID | 17 |
| Size K4 (profiled rail systems) | 8.9 |
| Size K3 (profiled rail systems) | 8.9 |
| Maximum operating temperature | |
| Size B3 | 18 |
| Size H3 | 57.05 |
| Possible travel distance s with front lube units | 1500 |
| Operating temperature | +60 °C |
| Tightening torque | 2 |
| Size E8 (profiled rail systems) | 80 |
| Height of runner block with guide rail | 70 |
| Oil quantity for initial filling of a front lube unit without oil | 14.5 |
| Linear guide type | Accessories for profiled rail systems |
| Size E9 (profiled rail systems) | 22.3 |
| Size A4 (profiled rail system) | 99 |
| Accessories for profiled rail systems | Lubrication |
| Weight | 0.134 |
| Nominal size | 55 |
General technical data
|
Size |
Part number |
Oil |
maximum operating temperature |
Mass |
|
cm³ |
°C |
g |
||
| 15 | R161912500 | 1 | + 60 | 15 |
| 20 | R161982500 | 2.2 | 20 | |
| R161982600 1) | 1.8 | |||
| 25 | R161922500 | 2.6 | 25 | |
| R161922600 1) | 2.5 | |||
| 30 | R161972500 | 3.85 | 35 | |
| 35 | R161932500 | 5.7 | 50 | |
| 45 | R161942500 | 9.6 | 70 | |
| 55 | R161952500 | 14.5 | 90 | |
| 65 | R161962500 | 30 | 130 |
| 1) | For Ball Runner Blocks F.N (flanged ... low profile) and S.N (slimline ... low profile) |
| a) | Size 65 |
Dimensions
|
Size |
15 | 20 | 25 | 30 | 35 | 45 | 55 | 65 | |||
|
Part number |
R161912500 | R161982500 | R161982600 1) | R161922500 | R161922600 1) | R161972500 | R161932500 | R161942500 | R161952500 | R161962500 | |
|
A4 |
mm |
31.8 | 43 | 41 | 47 | 58.8 | 69 | 84 | 99 | 124.2 | |
|
B3 |
mm |
11.5 | 12.5 | 13 | 14.5 | 16 | 17 | 18 | 19 | ||
|
E8 |
mm |
24.55 | 32.5 | 30.5 | 38.3 | 48.4 | 58 | 69.8 | 80 | 76 | |
|
E8.1 |
mm |
- | 100 | ||||||||
|
E9 |
mm |
6.7 2) | 7.3 2) | 5.6 2) | 11.5 2) | 8.5 2) | 14.6 2) | 17.35 2) | 20.9 2) | 22.3 2) | 11 2) |
|
E9 |
mm |
10.7 2) 3) | - | 15.5 2) 3) | - | 17.6 2) 3) | 24.35 2) 3) | 30.9 2) 3) | 32.3 2) 3) | - | |
|
E9.1 |
mm |
- | 53.5 2) | ||||||||
|
H |
mm |
24 | 30 | 28 | 36 | 33 | 42 | 48 | 60 | 70 | 90 |
|
H 3) |
mm |
28 | - | 40 | - | 45 | 55 | 70 | 80 | - | |
|
H3 2) |
mm |
19.4 | 24.9 | 22.9 | 29.3 | 26.3 | 35.05 | 39.85 | 49.8 | 57.05 | 75.7 |
|
H3 2) 3) |
mm |
23.4 | - | 33.3 | - | 38.05 | 46.85 | 59.8 | 67.05 | - | |
|
K2 |
mm |
5 | - | 5 | 6 | 7 | 8 | ||||
|
K3 2) |
mm |
3.35 | 3.7 | 3.1 | 5.5 | 4.1 | 6.05 | 6.9 | 8.2 | 8.9 | 16 |
|
K3 2) 3) |
mm |
7.35 | - | 9.5 | - | 9.05 | 13.9 | 18.2 | 18.9 | - | |
|
K4 2) |
mm |
3.35 | 3.7 | 3.1 | 5.5 | 4.1 | 6.05 | 6.9 | 8.2 | 8.9 | 16 |
|
K4 2) 3) |
mm |
7.35 | - | 9.5 | - | 9.05 | 13.9 | 18.2 | 18.9 | - | |
|
S12 |
M3 | - | M6 | M3 | M6 | M8 | |||||
|
S13 |
M3 | M6 | M3 | M6 | M8 | ||||||
| 1) | For Ball Runner Blocks F.N (flanged ... low profile) and S.N (slimline ... low profile) |
| 2) | Based on the mounting face of the ball runner block |
| 3) | For ball runner blocks S.H (slimline ... high) |
Prior to assembling the front lube units, initial lubrication of the Ball Runner Blocks with grease lubricant is required! See Ball Rail Systems - General technical notes and information, chapter "Maintenance".
Assembly of front lube units – note for mounting
The parts required for mounting are included (coated screws, seal and lube nipple).
In each case, mount a front lube unit (Picture, Pos.3) on each side of the Ball Runner Block!
Do not pull the Ball Runner Block out of the Ball Guide Rail!
Ball Runner Block up to size 45:
The enclosed lubrication pin (2) must be installed between the lube plate and the Ball Runner Block! (It contains a lube port.)
Remove the set screws (1). Screw in lubrication pin (2). Slide on front lube units (3). Insert O-rings (5) between Ball Runner Block and front lube units. Tighten screws (4) with tightening torque MA Tighten according to the table (see below).
Ball Runner Block from size 55:
Slide on front lube units (3). Remove set screws (1) and insert O-rings (5) between Ball Runner Block and front lube units. Tighten screws (4) with tightening torque MA Tighten according to the table (see below).
Maximum tightening torque MA
|
Size |
Pos. 4 
|
Tightening torque MA in Nm |
|
15 |
M2,5 x 12 |
0,3 |
|
20 |
M3 x 14 |
0,6 |
|
25 |
M3 x 14 |
0,6 |
|
30 |
M3 x 14 |
1,2 |
|
35 |
M3 x 16 |
1,2 |
|
45 |
M4 x 18 |
1,6 |
|
55 |
M5 x 18 |
2,0 |
|
65 |
M4 x 20 |
1,6 |
Initial filling of a front lube unit without oil
Remove set screw from the lube port (Fig. 1, item 1) and keep for later use. Tighten lube nipple (2). Lay front lube unit (3) down flat, fill with oil quantity according to table (see below), leave unused for approximately 36 hours. Check whether the lubricant insert is fully soaked with oil. Add oil if necessary. Remove lube nipple. Screw in set screw For size 20 Low: Place front lube units in 10 mm-deep oil for about 36 hours (see Fig. 2).
Fig. 1
Fig. 2
Recommended lubricating oil for initial filling:
Mobil SHC 639 (viscosity 1000 mm2/s at 40 °C)If any oil other than the one specified is used, check the compatibility of lubricants and observe travel distance!
|
Size |
Oil quantity for initial filling of a front lube unit without oil in cm3 |
|
15 |
0,90 |
|
20 |
2,00 |
|
25 |
2,40 |
|
30 |
3,85 |
|
35 |
5,70 |
|
45 |
9,60 |
|
55 |
14,50 |
|
65 |
30,00 |
Relubrication of the front lube units
Once the relubrication interval has been reached according to the diagram (see below), apply the relubrication quantity shown in the table "Oil quantity for initial filling of a front lube unit without oil in cm3" (see chapter "Commissioning").
Relubrication is possible via the lateral lube port. The front lube unit size 20 Low is not refillable via the lube port (see chapter "Commissioning", Fig. 2).
Note
After no more than 3 years Rexroth recommends replacing the front lube units and re-lubricating the Ball Runner Block prior to assembly of the new front lube unit.
Relubrication of the Ball Runner Block
Under clean operating conditions, the Ball Runner Block end faces can be re-lubricated with grease (Dynalub 510).
Relubrication of the Ball Runner Block with grease lubricant see section on lubrication.
Attention:
If other lubricants are used, this may lead to a reduction in lubrication intervals, performance losses with short-stroke applications and load capacities. Possible chemical interactions between the plastic materials, lubricants and preservative oils must also be taken into account. The recommended lubrication intervals depend on environmental factors, load and load type. Examples of environmental factors include swarf, mineral abrasion (or similar), solvent and temperature. Examples of loads and stress types are oscillations, shocks and tilting. The manufacturer is not familiar with the operating conditions. Only the user's own trials and accurate monitoring can yield safety across lubrication intervals. No water-based coolant/lubricant is permitted on the Ball Runner Blocks and Ball Guide Rails!
Load-dependent lubrication intervals for Ball Runner Blocks with front lube units
This applies for the following conditions:
Ball Runner Block lubricants: Dynalub 510 (NLGI 2 grease) or, alternatively, Castrol Longtime PD 2 (NLGI 2 grease) Front lube unit lubricants: Mobil SHC 639 (synthetic oil) Maximum speed: vmax. = 2 m/s No exposure to media Standard seals (SS) Ambient temperature: T = 20 – 30 °C
Definition Fcomb/C
The load ratio Fcomb/C describes the quotient form the equivalent dynamic load with combined load on bearing Fcomb (when considering the internal pre-tensioning force Fpr) and the dynamic load rating C.
a) Size 15, 20, 25, 30, 35, 45
b) Size 55:
c) Size 65
Legend
|
Symbol |
Description |
Unit |
|
C |
Dynamic load capacity |
N |
|
Fcomb |
Dynamic combined equivalent load |
N |
|
Fcomb/C |
Load ratio |
|
|
s |
Lubrication interval as travel distance |
km |