2018From a Facebook group: The Steadicam Group
Rubber-band stabilizer arm (NB ARM) vs. spring-based arms for daily use: temperature stability, load sensitivity, and maintenance demands
DisputedParticipants disagreed and reached no conclusion. Read the findings as positions, not as an answer.
What the thread found
- The manufacturer claims the NB ARM requires minimal re-tensioning when switching between lightweight prime lenses and heavy zoom lenses, and performs identically at 47 °C and in cold winter conditions.
- Critics argue that rubber bands must be re-tensioned at every load change during fast-paced on-set work, making the arm impractical for professional production.
- One operator reported that after four years using a homemade rubber-band arm setup, only 2–3 wraps required tightening in cold conditions.
- The NB ARM's slim J-bracket design and smoothness of operation received consistent praise across the discussion.
- The asking price for a rubber-band arm system is regarded as significantly too high; one operator suggested only approximately USD 2,000 as acceptable for a backup rig.
- Established spring-based arms (PRO Arm) are valued for minimal maintenance, resale value, and manufacturer support.
Depends on
- NB ARM suitability for professional multi-camera productions versus owner-operator work in moderate climates remains disputed.
- Whether the arm remains well-behaved across load changes or requires tensioning at each weight swap is unresolved.
Gear in this thread
Same gear or parts
- 2026Rocket Arm (elastic band arm) versus traditional spring arms like the G70x: performance, weight, build, and design dispute.DisputedFacebookThe Steadicam Group
- 2025Rubber-band suspension arm with adjustable anchor points: first impressions versus spring-based and competing band designs.DisputedFacebookSteadicam operators group
- 2025Removing the post tensioner from an NB-Arm to replicate PRO-Arm feel for operators switching models.FacebookThe Steadicam Group
- 2022Arm section lengths (pivot-center to pivot-center) in PRO, Tiffen, Xarm, and NB models: whether larger boom range derives from longer sections or wider opening angles.FacebookThe Steadicam Group