R162121820
KWD-025-SNH-C1-X-1

R162121820
  • Availability: on request
  • Weight: 0.60 KG
  • Part number: R162121820
  • Manufacturer: Bosch Rexroth

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R162121820
Physical size and weight
Net weight 0.6 kg
Width of runner block 48 mm
Length of runner block 86.2 mm
Height of runner block 33.9 mm
Height runner block with guide rail 40 mm
Dimension S9 thread diameter (profiled rail systems) M3
Other properties
Version Ball rail system
Nominal size 25
Format SNH - slimline, normal, high
Model High-precision ball runner block
Material (profiled rail systems) Carbon steel
Preload class C1 - Low preload
Accuracy class XP - Extra precise
Seal SS - Standard seal
Ball chain Without ball chain (standard)
Self-aligning for compensation of misalignments Without self-alignment
Lubrication Pre-lubricated, preserved
Maximum acceleration rate amax 500 m/s²
Note: Max. acceleration amax If Fcomb◡ 2.8 • Fpr : amax = 50 m/s2
Maximum permissible linear speed vmax 5 m/s
Permissible ambient temperature (min. ... max.) -10 °C ... +80 °C
Note: permissible ambient temperature (min. ... max.) 100 °C admissible for short time. For operation at negative temperatures, please consult us.
Friction coefficient μ 0.002 ... 0.003
Note: friction coefficient μ Without friction of seal
Dynamic load capacity C50 36000 N
Note: dynamic load capacity C50 Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic load capacity C100 28600 N
Note: dynamic load capacity C100 Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static load capacity C0 35900 N
Dynamic torsional moment load capacity Mt50 520 Nm
Note: Dynamic torsional moment load capacity Mt50 Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic torsional moment load capacity Mt100 410 Nm
Note: Dynamic torsional moment load capacity Mt100 Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static torsional moment load capacity Mt0 510 Nm
Dynamic longitudinal moment load capacity ML50 370 Nm
Note: Dynamic longitudinal moment load capacity ML50 Dynamic load capacities and load moments are based on a travel of 50,000 m according to DIN ISO 14728-1.
Dynamic longitudinal moment load capacity ML100 290 Nm
Note: Dynamic longitudinal moment load capacity ML100 Dynamic load capacities and load moments are based on a travel of 100,000 m according to DIN ISO 14728-1.
Static longitudinal moment load capacity ML0 360 Nm
Pitch T guide rail 60 mm
Dimension A (profiled rail systems) 48 mm
Dimension A1 (profiled rail systems) 24 mm
Dimension A2 (profiled rail systems) 23 mm
Dimension A3 (profiled rail systems) 12.5 mm
Dimension B (profiled rail systems) 86.2 mm
Dimension B tolerance (profiled rail systems) + 0.5
Dimension B1 57.8 mm
Dimension E1 35 mm
Dimension E2 (profiled rail systems) 35 mm
Dimension E8 (profiled rail systems) 38.3 mm
Dimension E9 (profiled rail systems) 15.5 mm
Dimension H 40 mm
Dimension H1 (profiled rail systems) 33.9
Dimension H2 with cover strip (profiled rail systems) 24.45 mm
Dimension H2 without cover strip (profiled rail systems) 24.25 mm
Dimension K1 (profiled rail systems) 17.45 mm
Dimension K2 (profiled rail systems) 18.6 mm
Dimension K3 (profiled rail systems) 9.5 mm
Dimension K4 (profiled rail systems) 9.5 mm
Dimension N3 (profiled rail systems) 9 mm
Dimension N6 (profiled rail systems) 15.2 mm
Dimension N6 tolerance (profiled rail systems) ± 0.5
Dimension S2 (profiled rail systems) M6
Dimension S5 (profiled rail system) 7 mm
Dimension S9 M3x5 mm
Dimension S9 lead 5 mm
Dimension T1 min 13 mm
Dimension V1 7.5 mm
Description

The ball runner block is highly precise and characterized by the following product features: Size 25 Format SNH: Width = slimline, length = normal, height = high Runner block body made of unalloyed steel CS Preload class C1: Low preload Accuracy class XP: Extra precision Without ball chain With initial lubrication and preservation Roller bearing grease Dynalub 510 Without attachment element, left (front reference edge) Without attachment element, right (front reference edge) Straight lube connection loosely attached. Runner block body in standard version Overall length of the runner block = 86.2 mm Interchangeability: The runner block and the guide rails can be combined with each other with every accuracy.

Features
  • Area of application: For restricted space in the transverse direction and high rigidity requirements
  • Maximum precision
  • Patented entry zone increases the travel accuracy up to a factor of six
  • Higher rigidity than SNS
  • Significantly reduced frictional oscillations and low friction force level, particularly under external load
  • Higher rigidity than SNS
  • Significantly reduced frictional oscillations and low friction force level, particularly under external load
  • Maximum precision
  • Patented entry zone increases the travel accuracy up to a factor of six
  • High rigidity in all load directions – permits applications with just one runner block per rail
  • High torque load capacity
  • Limitless interchangeability as all ball guide rail systems can be combined at will with all ball runner block versions within each accuracy class.
  • Long-term lubrication is possible over several years
  • End-face fastening thread for all attachments
  • Smooth, quiet running thanks to optimally designed ball return and guideway
  • Different preload classes
  • Excellent dynamic characteristics
  • Can be used on all SNS/SNO ball guide rails
  • Ball runner block pre-lubricated at the factory
Catalog (1)
PDF Ball rail systems High Precision BSHP (EN)
CAD (4)
File R1621_size25.dxf (ALL)
File R1621_size25.dwg (ALL)
File R1621_size25.igs (ALL)
File R1621_size25.stp (ALL)
Manual (2)
PDF R162121820 (EN)
PDF Ball rail systems High Precision BSHP (EN)
Name Material Number
R349928700
R162120005
R341700702
R341113101
UBPS 2505 AS1A & R161924051
25 R161922500
25 BG & R162021120
R341707809
R162020900
R162025100
R162020700
R162025300
PHK 25-4 & R161924285
R162020500
R162025500
R345503087
R162020300
HK 2505 KR R161924282
R162025700
R162020100
R162025900
25 SET R162021030
R341707609
R341700802
25 R161922050
MBPS 2505 AS1A R161924031
R345503037
KWH 2505 AS3A & R161924231
R161922130
R345503038
LCP 2505 AK/08 R161924274
R161924070
R345503034
R341702302
M6X8-M8X1-90DEG R341701809
R341707909
R345503069
R162025200
R162020800
PMK 25-4 & R161924065
R162025400
MKS 2505 AK & R161924060
R162020600
R162025600
MK 2505 AK & R161924260
R162020400
R162025800
R162020200
25 G1/8 BG & R162021130
R341707509
25 CL R165320289