Renold Couplings Cat 7th-4 - Industrial and Bearing Supplies

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The rubber blocks and elements used in Renold Hi-Tec Couplings are key elements in the coupling design. Strict quality control is Rubber-in-Compression These designs use non-bonded components, which allows for many synthetic elastomers to be employed. Rubber in Shear These designs use high tear strength, low creep natural rubber developed for diesel engine drives. Rubber Compound Rubber Information Natural Styrene- Neoprene Nitrile Stryene- Butadiene Butadiene Identification label Red Green Yellow White Blue* (F, NM) (SM) (CM) (AM) (S) Resistance to Compression Set Good Good Fair Good Fair Resistance to Flexing Excellent Good Good Good Good Resistance to Cutting Excellent Good Good Good Fair Resistance to Abrasion Excellent Good Good Good Good Resistance to Oxidation Fair Fair Very Good Good Fair Resistance to Oil & Gasoline Poor Poor Good Good Poor Resistance to Acids Good Good Fair Fair Good Resistance to Water Swelling Good Good Good Good Good Service Temp. Maximum; Continuous 80ºC 100ºC 100ºC 120ºC 100ºC Service Temperature Minimum -50ºC -40ºC -30ºC -40ºC -40ºC * High Damping Rubber Block Types DCB PM RB SM/SB SPECIAL WB Renold 40 Renold 45 Renold 50 Renold 60 Renold 70 Renold 80 Renold 90 For more information telephone us on +44 (0) 29 20792737 or fax +44 (0) 29 20791360 E-Mail: cardiff.sales@renold.com 88 applied in the manufacture, and frequent testing is part of the production process. These elastomers offer considerable advantages over others for specific applications, giving Renold Hi-Tec Couplings a distinctive lead in application engineering in specialised areas. All rubber in shear couplings are 100% tested to ensure bond/moulding integrity. NM SM CM AM S Renold 45 Renold 50 Renold 60 Renold 70 Renold 80 Renold 40 Renold 45 Renold 50 NCB Renold A1976/7 A833/7 Renold 60 Renold 70 Renold 80 Renold 90 Renold 50 Renold 60 Renold 70 Renold 80 Renold 90 Renold 50 Renold 60 Renold 70 Renold 80 S12 S19 S28 S33
Coupling damping varies directly with torsional stiffness and inversely with frequency for a given rubber grade. This relationship is conventionally described by the dynamic magnifier M, varying with hardness for the various rubber types. Torque ψ Mid Torque Mdm Deflection = AD = 2π Af M M = K Cω tan δ = Cω = I K M Mid Deflection Damping Characteristics Torque = (k + icω) aeiωt + δ δ Deflection = aeiωt Af AD For more information telephone us on +44 (0) 29 20792737 or fax +44 (0) 29 20791360 E-Mail: cardiff.sales@renold.com 89 This property may also be expressed as the Damping Energy Ratio or Relative Damping, which is the ratio of the damping energy, AD, produced mechanically by the coupling during a vibration cycle and converted into heat energy, to the flexible strain energy Af with respect to the mean position. Where C = Specific Damping (Nms/rad) K = Torsional Stiffness (Nm/rad) ω = Frequency (Rad/s) M = Dynamic Magnifier δ = Phase Angle Rad ψ = Damping Energy Ratio The rubber compound dynamic magnifier values are shown in the table below. Rubber grade M NM 45 15 SM 50 10 SM60 8 SM70 6 SM 80 4
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Couplings Resilient and Soft Start
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Contents Company Profile 5 Typical
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Renold Clutches & Couplings Renold
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Flexible and Soft Start Couplings -
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Pictorial Contents Chainflex Coupli
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Flexible Couplings should be used t
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Service Factors and Selection Servi
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Metric Range Range of Taper Bushes
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H1 C1 H2 Spiderflex D B D B D B E C
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Spider Coupling Power Torque Speed
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D B E Pinflex C1 C2 C2 Type B Type
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Pinflex Brakedrum Couplings G H D B
Page 25 and 26:
Crownpin An established pin/buffer
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Component Spares Crownpin Coupling
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D D Tyreflex Sizes TY40 to TY60 Siz
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Coupling Capacity: ● Maximum powe
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Discflex Ordering Code D 52 # # # #
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TYPE B Chainflex Flexible Coupling
Page 37 and 38: Coupling Capacity: ● Maximum powe
Page 39 and 40: Adapted and Bespoke Gear Couplings
Page 41 and 42: M L D A B E C C F M Gearflex HDB Co
Page 43 and 44: M L E B1 A1 A2 B2 D C1 C2 F Misalig
Page 45 and 46: C1 C2 F Gearflex GFV Ordering Code
Page 47 and 48: Hydrastart S o f t S t a r t - F l
Page 49 and 50: OUTER COVERS DRIVEN IMPELLER (B) (O
Page 51 and 52: Effect of starting on electric moto
Page 53 and 54: kW 1000 800 600 400 200 100 80 60 4
Page 55 and 56: Standard Available Options Non Dela
Page 57 and 58: Hydrastart Pinflex Coupling - Dimen
Page 59 and 60: Hydrastart Gearflex Coupling - Dime
Page 61 and 62: RB and PM Flexible Couplings Renold
Page 63 and 64: Rigid half / Flex half W3 J3 A F E
Page 65 and 66: 0.24 to 1.15 A F C Coupling Couplin
Page 67 and 68: RB Standard SAE Flywheel to Shaft w
Page 69 and 70: 1.1 Diesel Engine Drives The RB Cou
Page 71 and 72: RB Technical Data Coupling Nominal
Page 73 and 74: Features & Benefits ● Severe shoc
Page 75 and 76: 180 - 600 PM Shaft to Shaft PM 180
Page 77 and 78: Type PM-SMM dimensions table (AISE
Page 79 and 80: PM 0.4 - PM 130 PM Technical Data -
Page 81 and 82: PM 12 - PM 600 PM Technical Data -
Page 83 and 84: Photocopy this page and complete th
Page 85 and 86: Application Typical Driven Equipmen
Page 87: Illustrated below are two different
Page 91 and 92: LKB Range Product Range The LKB cou
Page 93 and 94: Renold Gears Product Details 93 Gea
Page 95 and 96: NEW ZEALAND Renold New Zealand, 594
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Renold Couplings Cat 7th-4 - Industrial and Bearing Supplies

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