Related Manuals for Grin Technologies M-AA4504
Summary of Contents for Grin Technologies M-AA4504
- Page 1 Fat Rear All-Axle Owner Manual Rev0 The Grin All-Axle Motor Fat (45mm) Rear Model Owner's Manual – Rev0 Grin Technologies Vancouver, BC, Canada (604) 569-0902 email: info@ebikes.ca web: www.ebikes.ca Copyright © 2024...
- Page 2 Fat Rear All-Axle Owner Manual Rev0 1 Introduction.................1 2 Components................1 3 Installation................3 4 Controller Hookup...............7 5 Power and Speed Capabilities..........7 6 Statorade Injection.............10 7 PAS / Torque Sensor............10 8 Service and Maintenance ..........13 9 Additional Points..............13 10 PAS System Settings............15 11 Specifications..............17...
- Page 3 Fat Rear All-Axle User Manual Rev0 1 Introduction Thank you for purchasing the V3 Fat Rear All-Axle hub motor from Grin Technologies. This efficient and robust direct drive hub motor can provide years of ebike joy on your fat tire bicycle project. Features of the Fat Rear All-Axle motor include: ...
- Page 4 Fat Rear All-Axle User Manual Rev0 2.1 Disc Spacer The 170mm kits use a 15mm disc spacer and the 190mm kits have a 35mm spacer to position the disc rotor in the correct alignment for an ISO disc caliper, ie 15.5mm inside the left dropout face of the bike. 2.2 Axle Extenders The 190/197mm adapter kits also include a 20mm axle extender which increases the effective axle length on the disc side of the hub.
- Page 5 Fat Rear All-Axle User Manual Rev0 3 Installation The rear All-Axle motor mounts to a bicycle just like a regular bike wheel, but you may first need to install the associated hardware components if they are not already mounted. 3.1 Axle Extender (190/197mm adapters only) Fit the 20mm axle extender over the left side of the axle, and tuck the motor wire into the channel of the...
- Page 6 Fat Rear All-Axle User Manual Rev0 Figure 5: Pass cable through the torque arm first. The L1019 connector just fits through the round opening. Tighten the two M3x10 screws to 1.2 Nm. Longer screws are provided when an axle extender is present. 3.4 Axle End Caps Insert the left and right side end caps into or over the axle.
- Page 7 Fat Rear All-Axle User Manual Rev0 3.5 Cassette Finally slide the cassette gear cluster over the freehub driver and tighten the cassette lockring until it is snug. If you are using a mountain standard cassette then a 1.5mm spacer is required to make the stack height long enough. Without the spacer in place, the cassette will not sit snug and will have play.
- Page 8 Fat Rear All-Axle User Manual Rev0 3.7 Attaching the Frame Clamp The frame clamp attaches to the left chainstay with two hose clamps. A piece of rubber sleeving can be cut to length and slipped over the hose clamp band to make this hardware more discreet.
- Page 9 Fat Rear All-Axle User Manual Rev0 4 Controller Hookup If you have a Phaserunner or Baserunner controller from Grin terminated with an L1019 plug, these parts simply plug together. Figure 12: Connectors. Torque/PAS cable hookup is independent of motor plug. The hookup of the 6 pin torque sensor is optional and depends on your kit style.
- Page 10 Fat Rear All-Axle User Manual Rev0 Motor SKU Name Turns M-AA4504R Standard Winding 4T 9.0 rpm/V M-AA4505R Slow Winding 7.2 rpm/V Table 1: The two winding speed options. 5.1 No-Load Speed Table The unloaded speed for each winding at different wheel diameters is summarized in Table 2.
- Page 11 Fat Rear All-Axle User Manual Rev0 5.3 Short Term and Continuous Power The power output capability of an electric motor is highly variable and depends on both how fast the motor is spinning and how long it needs to run for. Table 3 summarizes the estimated output power the Fat All-Axle hub can sustain both continuously and over a 5 minute period when the maximum allowable core temperature is defined (somewhat arbitrarily) at 110C.
- Page 12 Fat Rear All-Axle User Manual Rev0 For the USA, we define the rated motor power as the general continuous power capability at 15 mph cycling speeds (~180 rpm), which is 750 watts. 6 Statorade Injection As shown in Table 3, motor thermal performance at high loads is increased significantly by the addition of 10mL of Statorade ferrofluid which helps conduct heat from the stator core to the motor ring.
- Page 13 Fat Rear All-Axle User Manual Rev0 small 10T cog and are popular for use in 1x drivetrains. The 10T cog option is useful with fast ebikes to provide a comfortable pedal cadence even at high speeds. -PAS: This is a lower cost option that is mechanically identical to the THG model but only includes an integrated PAS signals without a torque sensor.
- Page 14 Fat Rear All-Axle User Manual Rev0 should only respond to the torque signal when a valid pedal RPM is detected as well. A torque signal of 0.4V indicates that a PAS only sensor is installed, while a signal of 0.2V indicates a communication fault with the sensor. 7.4 PAS Power The torque sensor runs off its own 12V nominal power source that is completely isolated...
- Page 15 Fat Rear All-Axle User Manual Rev0 9 Additional Points 9.1 Wheel Lacing The All-Axle motor uses 32 paired spoke holes, which results in the spokes having a tangential angle even in a 0 cross 'radial' lacing pattern. There is no need to cross the spokes with this hub.
- Page 16 Fat Rear All-Axle User Manual Rev0 100 C 1.13 kOhm 0.82 V 125 C 0.70 kOhm 0.49 V 9.3 Regenerative Braking Direct drive motors can produce a powerful regen braking force, equal to the forwards torque for acceleration. The integrated torque arm will safely handle transmission of torques in both directions.
- Page 17 Fat Rear All-Axle User Manual Rev0 leave a channel for the wire, or use a spacer on the axle insert to increase the axle OLD. Cable damage from installation is repairable but is not covered by warranty, so pay attention to this detail. 9.6 Funny Noises The Fat All-Axle motor has been optimized for weight savings and is generally 3kg lighter than comparable generic motors.
- Page 18 Fat Rear All-Axle User Manual Rev0 10.2 Recommended Superharness Controller Settings If the motor is setup with the PAS sensor plugged directy into a Phaserunner or Baserunner controller using the Superharness and 3 party display, we recommend the following PAS setup parameters. These can also be loaded automatically by choosing “All-Axle Trq/PAS”...
- Page 19 6 = Torque Signal ..... White Male Higo MiniB Cable 11.2 Electrical - Motor Winding 4T (Standard) 5T (Slow) Grin SKU M-AA4504 M-AA4505 Motor Kv 9 rpm/V 7.2 rpm/V Motor Ki (Inverse of Kv) 0.79 Nm/A 0.95 Nm/A Resistance (Phase to Phase) 102 mΩ...
- Page 20 Fat Rear All-Axle User Manual Rev0 11.3 Electrical – Torque Sensor Torque Sensor Power Draw 24 mA at 12V PAS Sensor Signal 0-5V Quadrature Encoded (2 wire) PAS Sensor Poles 9 Pulses / Rotation Torque Voltage Offset 0.7-0.9V Torque Voltage Scale 28.3 Nm/V (or 35 mV/Nm) 11.4 Mechanical Spoke Flange Diameter...
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