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O Rings - 1.78mm - 110.74mm - 138.94mm

About O Rings

These versatile seals are crucial in numerous applications, functioning effectively by fitting into grooves and compressing between two or more parts to create a reliable seal. They are particularly useful in dynamic environments as well as in static conditions such as pipelines or tanks.

Common materials for O Rings include Nitrile (Buna-N), Viton® (FPM, FKM), Neoprene® (CR), EPDM, and Silicone (VMQ), each offering unique properties that cater to varying operational demands and environmental factors.

O Rings come in diverse sizes and material makeups to meet specific industry needs, providing options in terms of chemical compatibility, resilience, and overall durability.

If you need assistance selecting the right O Ring for your application or have specific requirements, please contact our sales team at Tel:-01425-477787, or email sales@hendersonbearings.co.uk.

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4 Items

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  1. BS004 Nitrile NBR70 O Ring 1.78mm Bore 1.78mm Section
    Wish List Compare
    BS004 Nitrile NBR70 O Ring 1.78mm Bore 1.78mm Section
    £1.54 £1.28 As low as: £0.61
  2. BS542 Nitrile NBR70 O Ring 110.74mm Bore 1.78mm Section
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    BS542 Nitrile NBR70 O Ring 110.74mm Bore 1.78mm Section
    £8.83 £7.36 As low as: £3.53
  3. BS551 Nitrile NBR70 O Ring 138.94mm Bore 1.78mm Section
    Wish List Compare
    BS551 Nitrile NBR70 O Ring 138.94mm Bore 1.78mm Section
    £10.61 £8.84 As low as: £4.25
  4. BS606 Nitrile NBR70 O Ring 1.78mm Bore 1.02mm Section
    Wish List Compare
    BS606 Nitrile NBR70 O Ring 1.78mm Bore 1.02mm Section
    £1.68 £1.40 As low as: £0.67
per page

What are O Rings and why are they important in various industries?

O Rings are circular sealing elements designed to prevent leaks and maintain system integrity across multiple industries. They fit snugly into machined grooves to form tight seals, crucial in both dynamic movements and static conditions.

How do I select the right O Ring for my application?

Choosing the right O Ring requires considering the specific conditions it will be exposed to, including pressure, temperature, and chemical environment. The material of the O Ring (such as Nitrile, Viton®, Neoprene®, EPDM, or Silicone) should be selected based on these factors for optimal performance and durability.

What are the common uses of O Rings?

O Rings are versatile and used in many industries, including automotive, aerospace, and manufacturing. They are particularly valuable in systems where precise sealing is necessary, such as in fluid transfer equipment, hydraulic and pneumatic systems, and various types of pumps and valves.

Can O Rings fail, and how can I tell if they need replacing?

O Rings can fail due to wear and tear, improper sizing or material choice, or degradation from chemicals or temperatures. Signs of failure include leakage, visible cracking or brittleness, and loss of flexibility or shape. Regular inspection and maintenance can help identify when replacements are needed.

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Inside Diameter
  1. 0.73mm 1 item
  2. 1.07mm 1 item
  3. 1.24mm 1 item
  4. 1.42mm 1 item
  5. 1.78mm 2 items
  6. 2.06mm 1 item
  7. 2.54mm 1 item
  8. 2.57mm 1 item
  9. 2.84mm 1 item
  10. 2.9mm 1 item
  11. 3.17mm 1 item
  12. 3.63mm 1 item
  13. 3.69mm 1 item
  14. 4.34mm 1 item
  15. 4.42mm 1 item
  16. 4.47mm 1 item
  17. 4.76mm 1 item
  18. 5.23mm 1 item
  19. 5.28mm 1 item
  20. 5.94mm 1 item
  21. 6.02mm 1 item
  22. 6.07mm 1 item
  23. 6.35mm = 1/4" 1 item
  24. 6.75mm 1 item
  25. 7.52mm 1 item
  26. 7.6mm 1 item
  27. 7.66mm 1 item
  28. 7.94mm 1 item
  29. 8.73mm 1 item
  30. 9.12mm 1 item
  31. 9.19mm 1 item
  32. 9.250mm 1 item
  33. 9.92mm 1 item
  34. 10.69mm 1 item
  35. 10.78mm 1 item
  36. 10.82mm 2 items
  37. 11.11mm 1 item
  38. 12.29mm 1 item
  39. 12.37mm 1 item
  40. 12.42mm 1 item
  41. 12.7mm = 1/2" 1 item
  42. 13.1mm 1 item
  43. 13.87mm 1 item
  44. 13.95mm 1 item
  45. 15.08mm 1 item
  46. 15.24mm 1 item
  47. 15.47mm 1 item
  48. 15.54mm 1 item
  49. 15.6mm 1 item
  50. 15.88mm 1 item
  51. 17.04mm 1 item
  52. 17.13mm 1 item
  53. 17.16mm 1 item
  54. 17.46mm 1 item
  55. 17.86mm 1 item
  56. 18.64mm 1 item
  57. 18.72mm 1 item
  58. 18.77mm 1 item
  59. 20.22mm 1 item
  60. 20.29mm 1 item
  61. 20.35mm 1 item
  62. 20.64mm 1 item
  63. 21.82mm 1 item
  64. 21.9mm 1 item
  65. 21.95mm 1 item
  66. 22.23mm 1 item
  67. 23.4mm 1 item
  68. 23.47mm 1 item
  69. 23.52mm 1 item
  70. 23.81mm 1 item
  71. 25mm 1 item
  72. 25.07mm 1 item
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  74. 25.8mm 1 item
  75. 26mm 1 item
  76. 26.57mm 1 item
  77. 26.65mm 1 item
  78. 26.7mm 1 item
  79. 28.17mm 1 item
  80. 28.25mm 1 item
  81. 28.3mm 1 item
  82. 29.75mm 1 item
  83. 29.83mm 1 item
  84. 29.87mm 1 item
  85. 31.34mm 1 item
  86. 31.42mm 1 item
  87. 31.47mm 1 item
  88. 32.93mm 1 item
  89. 33mm 1 item
  90. 33.05mm 1 item
  91. 34.52mm 1 item
  92. 34.6mm 1 item
  93. 34.65mm 1 item
  94. 36.1mm 1 item
  95. 36.17mm 1 item
  96. 36.27mm 1 item
  97. 37.7mm 1 item
  98. 37.77mm 1 item
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  100. 39.35mm 1 item
  101. 39.45mm 1 item
  102. 39.7mm 1 item
  103. 40.87mm 1 item
  104. 40.95mm 1 item
  105. 41mm 1 item
  106. 41.28mm 1 item
  107. 42.52mm 1 item
  108. 42.86mm 1 item
  109. 44.05mm 1 item
  110. 44.12mm 1 item
  111. 44.17mm 1 item
  112. 44.45mm = 1-3/4" 1 item
  113. 45.7mm 1 item
  114. 46.04mm 1 item
  115. 47.23mm 1 item
  116. 47.3mm 1 item
  117. 47.34mm 1 item
  118. 48.9mm 1 item
  119. 50.4mm 1 item
  120. 50.47mm 1 item
  121. 50.52mm 1 item
  122. 52.07mm 1 item
  123. 53.57mm 1 item
  124. 53.64mm 1 item
  125. 53.67mm 1 item
  126. 55.25mm 1 item
  127. 56.82mm 1 item
  128. 56.87mm 1 item
  129. 58.42mm 1 item
  130. 59.92mm 1 item
  131. 60mm 1 item
  132. 60.04mm 1 item
  133. 61.6mm 1 item
  134. 63.1mm 1 item
  135. 63.17mm 1 item
  136. 63.22mm 1 item
  137. 64.77mm 1 item
  138. 66.27mm 1 item
  139. 66.35mm 1 item
  140. 66.4mm 1 item
  141. 67.95mm 1 item
  142. 69.44mm 1 item
  143. 69.52mm 1 item
  144. 69.570mm 1 item
  145. 71.12mm 1 item
  146. 72.62mm 1 item
  147. 72.7mm 1 item
  148. 72.76mm 1 item
  149. 74.3mm 1 item
  150. 75.57mm 1 item
  151. 75.8mm 1 item
  152. 75.88mm 1 item
  153. 75.94mm 1 item
  154. 77.5mm 1 item
  155. 79mm 1 item
  156. 80.6mm 1 item
  157. 82.22mm 1 item
  158. 82.28mm 1 item
  159. 83.8mm 1 item
  160. 85.34mm 1 item
  161. 88.58mm 1 item
  162. 88.64mm 1 item
  163. 91.7mm 1 item
  164. 94.93mm 1 item
  165. 95mm 1 item
  166. 98.05mm 1 item
  167. 101.28mm 1 item
  168. 101.34mm 1 item
  169. 104.37mm 1 item
  170. 104.4mm 1 item
  171. 107.63mm 1 item
  172. 107.7mm 1 item
  173. 110.74mm 1 item
  174. 113.98mm 1 item
  175. 114mm 1 item
  176. 120.02mm 1 item
  177. 120.33mm 1 item
  178. 120.4mm 1 item
  179. 123.44mm 1 item
  180. 126.67mm 1 item
  181. 126.78mm 1 item
  182. 129.4mm 1 item
  183. 133mm 1 item
  184. 133.1mm 1 item
  185. 135.76mm 1 item
  186. 138.94mm 1 item
  187. 139.38mm 1 item
  188. 139.07mm 1 item
  189. 142.11mm 1 item
  190. 142.88mm 1 item
  191. 145.42mm 1 item
  192. 145.29mm 1 item
  193. 145.65mm 1 item
  194. 145.73mm 1 item
  195. 148.46mm 1 item
  196. 148.6mm 1 item
  197. 151.64mm 1 item
  198. 151.77mm 1 item
  199. 152mm 1 item
  200. 152.07mm 1 item
  201. 154.81mm 1 item
  202. 158mm 1 item
  203. 158.35mm 1 item
  204. 158.43mm 1 item
  205. 161.16mm 1 item
  206. 164.34mm 1 item
  207. 164.7mm 1 item
  208. 164.78mm 1 item
  209. 167.51mm 1 item
  210. 170.69mm 1 item
  211. 171.13mm 1 item
  212. 173.87mm 1 item
  213. 177.4mm 1 item
  214. 177.48mm 1 item
  215. 183.75mm 1 item
  216. 183.83mm 1 item
  217. 190.18mm 1 item
  218. 196.45mm 1 item
  219. 196.53mm 1 item
  220. 202.88mm 1 item
  221. 208.92mm 1 item
  222. 209.15mm 1 item
  223. 209.23mm 1 item
  224. 215.58mm 2 items
  225. 221.93mm 1 item
  226. 227.97mm 1 item
  227. 228.28mm 1 item
  228. 234.63mm 1 item
  229. 240.67mm 1 item
  230. 240.98mm 1 item
  231. 247.33mm 1 item
Outside Diameter
  1. 3.82mm 1 item
  2. 5.34mm 1 item
  3. 114.3mm = 4-1/2" 1 item
  4. 142.5mm 1 item
O Ring Cross Section
  1. 1.020mm 1 item
  2. 1.78mm 3 items
Shore Hardness
  1. 70 4 items
Colour
  1. Black 4 items
Material
  1. Nitrile (Buna/NBR) 4 items
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