IMO - Spares you can trust!

2-row 4-point contact ball pitch often used as spare part in original configuration in cases of • inadequate lubrication • fair wear and tear • raceway corrosion (ingress of water) • stress corrosion (cracking rings through bolt holes) • component failures (broken balls, core crushing, surface fatigue & spalling, ) • grease leakage

IMO pitch bearings spares include design and quality improvements to address these known failure modes to ensure it lasts longer than the original.

T-Solid – a patented 3-raceway/3-ring design with load independent contact angle. Strongly recommended in cases of prematurely failing pitch bearings due to • raceway edge loading (contact ellipse truncation, edge break) • cage wear and fracture • heavily deforming raceways (inadequate system stiffness) • jamming balls up to bearing lock-up • inadequate strength or structural durability (cracks through filling plug holes, or near stiffening or lifting plates) Provides for the same form, fit & function. More information: www.t-solid.de

Bearing features for long service life: Benchmark IMO seal   rings made from 42CrMo4QT patented seal with barbed hook (no pull-out)   proven U.S. and EU quality Balls tested up to 2bars (dynamic) and 5bars (static)   corrosion protection to the highest level C5 no grease leakage   salt spray tested bolt hole corrosion no contamination ingress (dust, moisture)  protection field tested on turbines with direct seal  non-corroding seal running surfaces exposure to sun and weather   induction hardening & depth 100% tested all seals replaceable in the field

Accessories & Shipment  hardware upon request (blade & hub studs, hex bolts, nuts, washers supplied as retrofit kit in same crate as bearings)  seaworthy packed in sets or single crates  shipment VCI ® corrosion protected

www.imo.de Spare parts catalog – turbine pitch bearing replacements

Lead time category

Standard Brand type ²) 4-8 weeks Normal stock 12-18 weeks manufacturing item 1) manufacturing lead time lead time V47 Vestas V80 Vestas Vestas V82 Vestas V90 Vestas V100 S6X Suzlon Suzlon S8X Suzlon S9x Siemens SWT 1.3 Siemens Siemens SWT 2.3-93 Siemens SWT 2.3-101 Gamesa G8x Gamesa Gamesa G9x GE 1.5s/sl/sle GE 1.5se/xle GE GE 1.85-87 m GE 1.x-100, 1.x-10x T-Solid 3) first choice GE 2.x MM82 T-Solid 3) Senvion Senvion MM92 recommended Senvion 3.XM Acciona Acciona AW1500 NEG Micon NM 54 NEG Micon NEG Micon NM 72 NEG Micon NM 82 1) Normal stock item in Sioux Falls / South Dakota, USA or Gremsdorf / Germany. Subject to prior sale. Exact delivery time upon request. 2) and pitch bearing spare parts for other turbine models upon request. Bearing components like seals also available. 3) See front page of this flyer

• German engineering & manufacture IMO • Benchmark FE modelling • More than 25 years track record in your leading supplier • 45GW pitch, yaw & single main bearings supplied since 1988 • In service with the top wind turbine OEMs • T-Solid – available from IMO only

Our Partner in the US: Malloy Electric - Mr. Cory Mittleider, 809 W Russell, Sioux Falls, SD 57104 USA Tel. +1 605 357-1076 [email protected], www.malloywind.com

IMO GmbH & Co. KG, 91350 Gremsdorf, Germany, Tel. +49 9193 6395-1481, [email protected] www.imo.de