70 Rokku Mu

Color Options | Braking | Set of (5)

$80.00

1 Review

The 70 Rokku Mu is the first caster of its kind. It utilizes one high-precision chrome steel radial ball bearing per caster, and two self-lubricating journal bearings in an efficient arrangement that allows for exceptionally smooth operation and twice the load rating of typical “high-capacity” chair casters, yet with lower costs of production and 30% less weight as compared to our 70 Okina Mu caster. This is the size most often associated with typical office chairs, tables and case goods. Select our 11mm friction sleeve stem mount for chair sockets, and plate mounts or threaded stems for case goods as necessary.

All wheels come in sets of 5

Clear

Set(s)

  • Modern & Customizable Aesthetic (4 Standard Inner Circle Colors to Choose From)
  • Estimated Load Capacity of 150 lbs. per Caster (5 casters = 750 lbs., 4 casters = 600 lbs.)
  • Hygienic Twin-Wheel Hubless Design with No Axle or Blind Openings to Engage or House Debris
  • (1) Sealed ABEC Through-Hardened Chrome Steel Radial Ball Bearing
  • Non-Marring, Medium Durometer Urethane Tires Suitable for Both Hard & Soft Flooring
  • Quick & Easy Installation in Seconds
  • Available with (4) Standard Mounting Configurations
  • Available With Lever-Actuated Brake for Easy Locking
  • Covered by US Patent 8561258, International Patents Pending
  • Certified Compliant with BIFMA X5.1 Durability Standards for Office Chairs
  • 5 Year Warranty

The 70 Mu is the first caster of its kind. It utilizes one high-precision chrome steel radial ball bearing per caster, and two self-lubricating journal bearings in an efficient arrangement that allows for exceptionally smooth operation and twice the load rating of typical “high-capacity” chair casters, yet with lower costs of production and 30% less weight as compared to our 70 Okina Mu caster. This is the size most often associated with typical office chairs, tables and case goods. Select our 11mm friction sleeve stem mount for chair sockets, and plate mounts or threaded stems for case goods as necessary. Available with easily accessible brake and with an estimated load capacity of 150 lbs. per caster (5 casters = 750 lbs., 4 casters = 600 lbs.). Covered by US patent 8561258. International patents pending. Certified compliant with BIFMA X5.1 durability standards for office chairs.

1 review for 70 Rokku Mu

  1. Jun (verified owner)

    These casters work alright. I would not say they feel any smoother than the original ones I had replaced on my Steelcase Gesture. I would rate them higher but the little lock switches on each caster stick out enough to injure you if you’re not careful. I have already given myself a couple of very painful scrapes near my feet and ankles after just a day of use. Overtime I am certain ill develop muscle memory reaction to be more careful around the casters. However it would have been nice to make the switches have a softer rounded edge rather than the hard sharp edged corners. Will be giving serious thought to return and opt for the non locking casters instead. The plus side the locking feature works quite well. Also the casters themselves are very aesthetically pleasing. I love the look with my white leather Gesture.

    • Jake Swihart

      Hi Jun,

      Thank you very much for your constructive feedback. Please note our hybrid casters (Mu and Rokku Mu), while smooth at the onset, will even improve with a short break-in period for the journal bearing tires. The premium chair OEMs definitely use high quality – albeit standard meaning two plastic disks pressed on to a small diameter pin/shaft – casters and often require them to be life-tested at 130% of industry standard (this is definitely not the case for all chair manufacturers). Regardless, without ball bearings there is simply no way a standard caster will perform the same as casters precision ground chrome steel ball bearings over time or with heavier loads. Your comments regarding the brake lever are particularly valuable to us. Typically braking casters are not used on seating and are more for case goods, yet the geometry does present a challenge with respect to interaction with one’s feet if used in seating and this is something we should make people aware of for this particular caster. We have new designs in development (similar to our 92mm braking caster), that will address this challenge. Thank you again, and please let us know if you would like to replace the braking Rokku Mus with Mus.

Add a review

Your email address will not be published. Required fields are marked *