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A shock absorber that can be adjusted for different collision speeds.
[Features]
· Built-in orifice opening/closing adjustment function.
· Absorbed energy is about 1.6 times that of conventional products.
· Adjustable.
· RB-LROEM (XT) low-speed type / RB-OEM (XT) standard type.
· Models available with or without cap included.
· Attached components: none / with lock collar / with stop collar / with rectangular flange / with square flange.
[Applications]
For use with robots, packing equipment, weaving machines, machine tools, etc.
Japanese Only

Adjustable Shock Absorber Large Series RB-LROEM(XT)/RB-OEM(XT) external appearance
| Model | RB-LROEMXT 1.5M × 1 | RB-LROEMXT 1.5M × 2 | RB-LROEMXT 2.0M × 2 | |
|---|---|---|---|---|
| Max. Absorbed Energy (J) | 425 | 850 | 2,260 | |
| Outer Diameter Thread Size | M42 × 1.5 | M64 × 2.0 | ||
| Stroke Absorption (mm) | 25 | 50 | 50 | |
| Collision Speed (m/s)* | 0.08 to 1.3 | 0.08 to 0.8 | ||
| Max. Absorbed Energy per Hour (J/hr) | 126,000 | 167,000 | 271,000 | |
| Max. Drag Value (N)Note | 20,000 | 20,000 | 51,000 | |
| Equivalent Mass Range (kg) | 240 to 142,000 | 480 to 284,000 | 800 to 771,000 | |
| Spring Force (N) | Extended | 49 | 49 | 76 |
| Compressed | 68 | 80 | 155 | |
| Max. Thrust (N) | 6,660 | 6,660 | 17,760 | |
| Temperature Range (°C) | -10 to +80 | |||
| Weight (kg) | 1.3 | 1.7 | 3.6 | |
| Attachable Components | Cap | ✓ | ✓ | ✓ |
| Stop Collar | ✓ | ✓ | ✓ | |
| Rectangular Flange | ✓ | ✓ | - | |
| Square Flange | - | - | ✓ | |
| Lock Collar | ✓ | ✓ | ✓ | |
Note: The maximum drag value is the impact force arising from collision when used at maximum absorbed energy.
*Indicates collision speed when one unit is used individually. If using two or more units in parallel, please refer to the catalog.
| Model | RB-OEMXT 1.5M × 1 | RB-OEMXT 1.5M × 2 | RB-OEMXT 1.5M × 3 | RB-OEMXT 2.0M × 2 | RB-OEMXT 2.0M × 4 | RB-OEMXT 2.0M × 6 | RB-OEM 3.0M × 2 | RB-OEM 3.0M × 3.5 | RB-OEM 3.0M × 5 | RB-OEM 3.0M × 6.5 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. Absorbed Energy (J) | 425 | 850 | 1,300 | 2,260 | 4,520 | 6,780 | 2,300 | 4,000 | 5,700 | 7,300 | |
| Outer Diameter Thread Size | M42 × 1.5 | M64 × 2.0 | M85 × 2.0 | ||||||||
| Stroke Absorption (mm) | 25 | 50 | 75 | 50 | 100 | 150 | 50 | 90 | 125 | 165 | |
| Collision Speed (m/s)* | 0.3 to 3.5 | 0.3 to 4.3 | |||||||||
| Max. Absorbed Energy per Hour (J/hr) | 126,000 | 167,000 | 201,000 | 271,000 | 362,000 | 421,000 | 372,000 | 652,000 | 933,000 | 1,215,000 | |
| Max. Drag Value (N)Note | 20,000 | 20,000 | 20,000 | 51,000 | 51,000 | 51,000 | 67,000 | 67,000 | 67,000 | 67,000 | |
| Equivalent Mass Range (kg) | 25 to 9,000 | 45 to 18,000 | 54 to 27,000 | 75 to 47,000 | 118 to 94,000 | 130 to 141,000 | 195 to 36,000 | 215 to 36,000 | 220 to 51,000 | 300 to 56,700 | |
| Spring Force (N) | Extended | 49 | 32 | 32 | 76 | 69 | 90 | 110 | 110 | 70 | 120 |
| Compressed | 68 | 68 | 80 | 155 | 160 | 285 | 196 | 196 | 196 | 330 | |
| Max. Thrust (N) | 2,890 | 2,890 | 2,890 | 6,660 | 6,660 | 6,660 | 12,000 | 12,000 | 12,000 | 12,000 | |
| Temperature Range (°C) | -10 to +80 | ||||||||||
| Weight (kg) | 1.3 | 1.7 | 2.1 | 3.6 | 4.9 | 6.4 | 5.7 | 6.8 | 8.2 | 10.2 | |
| Attachable Components | Cap | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Stop Collar | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | - | - | - | - | |
| Rectangular Flange | ✓ | ✓ | ✓ | - | - | - | - | - | - | - | |
| Square Flange | - | - | - | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
| Lock Collar | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
Note: The maximum drag value is the impact force arising from collision when used at maximum absorbed energy.
*Indicates collision speed when one unit is used individually. If using two or more units in parallel, please refer to the catalog.

List of dimensions for when RB-(LR)OEMXT1.5M × 1 and RB-(LR)OEMXT2.0M × 2 are attached
RB-OEMXT1.5M × 1 / RB-LROEMXT1.5M × 1
RB-OEMXT2.0M × 2/RB-LROEMXT2.0M × 2

List of dimensions for when RB-(LR)OEMXT1.5M × 2, RB-(LR)OEMXT1.5M × 3, RB-(LR)OEMXT2.0M × 4 and RB-(LR)OEMXT2.0M × 6 are attached
RB-OEMXT1.5M × 2 / RB-LROEMXT1.5M × 2
RB-OEMXT1.5M × 3
RB-OEMXT2.0M × 4
RB-OEMXT2.0M × 6
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Nominal Mounting Screw [M] | Overall Length L (mm) | Stroke S (mm) | Max. Absorbed Energy (J) | Mounting Screw Nominal M | Max. Collision Velocity (m/s) | Min. Collision Velocity (m/s) | Equivalent Mass (kgf) | Max. Resisting Force Value (N) | Outer Dia. D (Ø) | Absorbed Energy per Minute (J/min) | With cap | Option |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 2,582.90 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | With cap | With lock collar, stop collar and rectangular flange | ||
MYR 2,198.30 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | With cap | With rectangular flange | ||
MYR 2,426.96 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | With cap | With stop collar | ||
MYR 2,525.11 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | With cap | With stop collar and rectangular flange | ||
MYR 2,080.08 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With lock collar | ||
MYR 2,178.23 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With lock collar and rectangular flange | ||
MYR 2,406.89 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With lock collar and stop collar | ||
MYR 2,505.79 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With lock collar, stop collar and rectangular flange | ||
MYR 2,107.33 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With rectangular flange | ||
MYR 2,335.94 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With stop collar | ||
MYR 2,373.73 | 1 Piece(s) | 27 Day(s) or more | 42 | 213 | 50 | 850 | M42 × 1.5 | 3.5 | 0.3 | 45 to 18,000 | 20,000 | 58 | 2,783.3 | No | With stop collar and rectangular flange | ||
MYR 2,087.91 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | None | ||
MYR 2,178.23 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | None | ||
MYR 2,249.19 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With lock collar | ||
MYR 2,348.08 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With lock collar and rectangular flange | ||
MYR 2,576.74 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With lock collar and stop collar | ||
MYR 2,674.89 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With lock collar, stop collar and rectangular flange | ||
MYR 2,277.13 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With rectangular flange | ||
MYR 2,505.79 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | With cap | With stop collar | ||
MYR 2,158.86 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With lock collar | ||
MYR 2,485.67 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With lock collar and stop collar | ||
MYR 2,584.62 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With lock collar, stop collar and rectangular flange | ||
MYR 2,186.16 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With rectangular flange | ||
MYR 2,414.72 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With stop collar | ||
MYR 2,506.40 | 1 Piece(s) | 27 Day(s) or more | 42 | 264 | 75 | 1,300 | M42 × 1.5 | 3.5 | 0.3 | 54 to 27,000 | 20,000 | 58 | 3,350 | No | With stop collar and rectangular flange | ||
MYR 3,960.04 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | None | ||
MYR 4,082.62 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | None | ||
MYR 4,299.04 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With square flange | ||
MYR 4,235.97 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With lock collar | ||
MYR 4,453.19 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With lock collar and square flange | ||
MYR 5,005.04 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With lock collar and stop collar | ||
MYR 5,221.46 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With lock collar, stop collar and square flange | ||
MYR 4,850.95 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With stop collar | ||
MYR 5,068.11 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | With cap | With stop collar and square flange | ||
MYR 4,177.21 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With square flange | ||
MYR 4,114.14 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With lock collar | ||
MYR 4,312.68 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With lock collar and square flange | ||
MYR 4,882.46 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With lock collar and stop collar | ||
MYR 4,729.06 | 1 Piece(s) | 27 Day(s) or more | 64 | 243 | 50 | 2,260 | M64 × 2.0 | 3.5 | 0.3 | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With stop collar | ||
MYR 4,945.53 | 1 Piece(s) | 27 Day(s) or more | 64 | 226 | - | 2,260 | M64 × 2.0 | - | - | 75 to 47,000 | 51,000 | 77 | 4,516.7 | No | With stop collar and square flange | ||
MYR 4,283.29 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | No | None | ||
MYR 4,405.82 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | With cap | None | ||
MYR 4,622.29 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | With cap | With square flange | ||
MYR 4,559.22 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | With cap | With lock collar | ||
MYR 5,328.28 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | With cap | With lock collar and stop collar | ||
MYR 5,431.48 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | With cap | With lock collar, stop collar and square flange | ||
MYR 4,500.40 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | No | With square flange | ||
MYR 4,437.38 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | No | With lock collar | ||
MYR 5,135.16 | 1 Piece(s) | 27 Day(s) or more | 64 | 345 | 100 | 4,520 | M64 × 2.0 | 3.5 | 0.3 | 118 to 94,000 | 51,000 | 77 | 6,033.3 | No | With lock collar and stop collar | ||
MYR 4,926.21 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | No | None | ||
MYR 4,940.66 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | With cap | None | ||
MYR 5,152.89 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | With cap | With square flange | ||
MYR 6,059.97 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | With cap | With lock collar, stop collar and square flange | ||
MYR 5,817.07 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | With cap | With stop collar | ||
MYR 5,142.63 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | No | With square flange | ||
MYR 5,079.56 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | No | With lock collar | ||
MYR 5,911.65 | 1 Piece(s) | 27 Day(s) or more | 64 | 473 | 150 | 6,780 | M64 × 2.0 | 3.5 | 0.3 | 130 to 141,000 | 51,000 | 77 | 7,016.7 | No | With stop collar and square flange |
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| Structure | Adjustable Type | Main Body, Related Components | Main Body | Orifice Type | Irregular Multi Orifice Type |
|---|---|---|---|---|---|
| Operating Environment | Standard | Operating Temperature Range(°C) | -10 to 80 |
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