Center Bonded Mounts isolate vibration, control shock and reduce noise due to structure borne vibrations. Available in a full range of rated load capacities and able to withstand shock loads of 10 g's, these mounts effectively protect equipment and improve operator comfort. They are ideal for automotive, marine, railroad and industrial markets.
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Center Bonded Mounts

CBA-50 Series Center Bonded Mounts
Center Bonded Mounts

CBA-50 Series Center Bonded Mounts
Center Bonded Mounts

CBA-50 Series Center Bonded Mounts
Center Bonded Mounts

CBA-50 Series Center Bonded Mounts
Center Bonded Mounts

CBA-50 Series Center Bonded Mounts
Description N/A
  • Vibration isolation in all directions.
  • Noise attenuation.
  • Easy installation because of one-piece design.
  • Low-cost installation.
  • Long service life.
  • Consistent performance because of permanently bonded design.
  • Shock protection in all directions provided by cushioned snubbing, no metal-to-metal bottoming.
  • Standard sizes available from stock.
  • Space-saving size.
  • Captive installation after overload failure when recommended bolt, washer and nut are used.
  • Accommodate English and Metric bolts.
Maximum Axial Static Load Rating at Deflection1 N/A 100 lbs at 0.09 in 445 N at 2.3 mm N/A 200 lbs at 0.09 in 890 N at 2.3 mm N/A 1334 N at 3 mm 300 lbs at 0.12 in N/A 1780 N at 3 mm 400 lbs at 0.12 in N/A 2224 N at 3 mm 500 lbs at 0.12 in
Typical Axial Spring Rate N/A 1110 lbs/in194 N/mm N/A 2220 lbs/in389 N/mm N/A 2500 lbs/in438 N/mm N/A 3300 lbs/in578 N/mm N/A 4200 lbs/in736 N/mm
Typical Radial Spring Rate N/A 1300 lbs/in228 N/mm N/A 3000 lbs/in525 N/mm N/A 3500 lbs/in613 N/mm N/A 4300 lbs/in753 N/mm N/A 5300 lbs/in927 N/mm
Metal Bracket Part Number2 N/A Y-30266-5-1 N/A Y-30266-5-1 N/A Y-30266-4-1 N/A Y-30266-4-1 N/A Y-30266-3-1
Dimension A N/A 2.38 in60.5 mm N/A 2.38 in60.5 mm N/A 3.75 in95.2 mm N/A 3.75 in95.2 mm N/A 4.25 in108.0 mm
Dimension B N/A 0.44 in11.2 mm N/A 0.44 in11.2 mm N/A 0.50 in12.7 mm N/A 0.50 in12.7 mm N/A 0.50 in12.7 mm
Minimum Diameter C N/A 0.404 in10.3 mm
Maximum Diameter C N/A 0.412 in10.5 mm
Dimension D N/A 1.75 in44.5 mm N/A 1.75 in44.5 mm N/A 2.25 in57.2 mm N/A 2.25 in57.2 mm N/A 2.50 in63.5 mm
Minimum Inner Diameter E N/A 0.397 in10.1 mm N/A 0.397 in10.1 mm N/A 0.525 in13.3 mm N/A 0.525 in13.3 mm N/A 0.639 in16.2 mm
Maximum Inner Diameter E N/A 0.41 in10.4 mm N/A 0.41 in10.4 mm N/A 0.54 in13.7 mm N/A 0.54 in13.7 mm N/A 0.657 in16.7 mm
Outer Diameter N/A 0.50 in12.7 mm N/A 0.50 in12.7 mm N/A 0.75 in19.0 mm N/A 0.75 in19.0 mm N/A 0.88 in22.3 mm
Dimension F N/A 2.25 in57.2 mm N/A 2.25 in57.2 mm N/A 3.00 in76.2 mm N/A 3.00 in76.2 mm N/A 3.50 in88.9 mm
Dimension G N/A 0.61 in15.5 mm N/A 0.61 in15.5 mm N/A 0.85 in21.6 mm N/A 0.85 in21.6 mm N/A 0.82 in20.8 mm
Dimension H N/A 0.06 in1.5 mm N/A 0.06 in1.5 mm N/A 0.1 in2.5 mm N/A 0.1 in2.5 mm N/A 0.13 in3.3 mm
Dimension I N/A 1.25 in31.8 mm N/A 1.25 in31.8 mm N/A 2.00 in50.8 mm N/A 2.00 in50.8 mm N/A 2.35 in59.7 mm
Dimension J N/A 1.07 in27.2 mm N/A 1.07 in27.2 mm N/A 1.45 in36.8 mm N/A 1.45 in36.8 mm N/A 1.50 in38.1 mm
Dimension K N/A 1.25 in31.8 mm N/A 1.25 in31.8 mm N/A 1.92 in48.8 mm N/A 1.92 in48.8 mm N/A 2.19 in55.6 mm
Minimum M3 N/A 1.50 in38.1 mm N/A 1.50 in38.1 mm N/A 2.38 in60.5 mm N/A 2.38 in60.5 mm N/A 2.75 in69.9 mm
Dimension N N/A 0.57 in14.5 mm N/A 0.57 in14.5 mm N/A 0.79 in20.1 mm N/A 0.79 in20.1 mm N/A 0.76 in19.3 mm
Dimension SD (± 0.03) N/A 1.38 in35.1 mm N/A 1.38 in35.1 mm N/A 2.00 in50.8 mm N/A 2.00 in50.8 mm N/A 2.25 in57.2 mm
Minimum T4 N/A 0.19 in4.8 mm N/A 0.19 in4.8 mm N/A 0.25 in6.4 mm N/A 0.25 in6.4 mm N/A 0.38 in9.7 mm
Maximum T5 N/A 0.25 in6.40 mm N/A 0.25 in6.40 mm N/A 0.38 in9.70 mm N/A 0.38 in9.70 mm N/A 0.50 in12.7 mm
Washer Part Number N/A J-2049-58 N/A J-2049-58 N/A J-2049-52 N/A J-2049-52 N/A J-2049-53
Inner Diameter N/A 0.42 in10.7 mm N/A 0.42 in10.7 mm N/A 0.53 in13.5 mm N/A 0.53 in13.5 mm N/A 0.64 in16.3 mm
Thickness N/A 0.120 in3.0 mm N/A 0.120 in3.0 mm N/A 0.125 in3.2 mm N/A 0.125 in3.2 mm N/A 0.125 in3.2 mm
Tolerances for Dimensions N/A .xx = ± 0.03 in. (± 0.762 mm)
.xxx = ± 0.015 in. (± 0.381 mm)
Washer N/A , Washer
 		N/A , Washer
 		N/A , Head Washer
 		N/A , Head Washer
 		N/A , Head Washer
General Description N/A Center Bonded Mounts provide flexible suspension systems for mobile, transport-mounted or portable equipment. Typical applications include engines, cabs, fuel tanks, pumps, air conditioning units, compressors and industrial machinery.
Application Engineering Assistance N/A Frequently, vibration isolation problems require a system engineering analysis. Lord has the computer capability, as well as specialized programs, for analyzing engine/ transmission combinations. The output from this analysis is a mounting proposal which optimizes performance over the complete range of operating speeds. This service is available to you upon request.
Note N/A Mount and washer only furnished by Lord.
All metal parts are made of low carbon steel.
  • 1 These ratings are for general industrial applications. For on-highway use 80% of loads shown. For off-highway use 70% of loads shown.
  • 2 If you require a high bolt torque series or any other special part, use metal bracket part number and the CBA part number, contact the application department for assistance.
  • 3 Bracket must provide support in excess of M Dia. Min., otherwise a washer is required. Washer must be ordered separately.
  • 4 Minimum supporting member thickness for high rebound load capacities.
  • 5 Maximum supporting member thickness for all applications.