Machined Brass Cage NATR Series Yoke Type Support Rollers
Temperature and speed limits, lubricant compatibility, and the bore range this cage is offered across.
Machined Brass Cage NATR Series Yoke Type Support Rollers are made from machined cast or wrought brass, rolling-element or ring guided (suffix M, MA, MB or MP by maker). Corrosion behavior: good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant. The material is non-magnetic, and the usable service range is the cage itself is good well past the temperature at which the lubricant and the ring stabilization give out. In practice this material is specified for large bearings, high speed, heavy shock and vibration, and wherever temperature or lubricant rules out polyamide.
Material
machined cast or wrought brass, rolling-element or ring guided (suffix M, MA, MB or MP by maker)
Corrosion resistance
Good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant
Magnetic response
Non-magnetic
Service temperature
the cage itself is good well past the temperature at which the lubricant and the ring stabilization give out
Property figures are typical for the material. In an assembled bearing the lubricant, the seals and the cage frequently reach their limits before the material does, so check all four against the duty. Material certification is available on request for production orders.
Machined Brass Cage NATR Series Yoke Type Support Rollers are dimensioned to DIN 5429 / ISO 1206 exactly as the standard version is: the material changes the properties, never the envelope. What it does change — good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant, non-magnetic and the service range the cage itself is good well past the temperature at which the lubricant and the ring stabilization give out — is set out below with the full size chart.
Why Machined Brass Cage for NATR Series Yoke Type Support Rollers
Specified for large bearings, high speed, heavy shock and vibration, and wherever temperature or lubricant rules out polyamide. In a natr series yoke type support rollers it is the cage, which spaces the rolling elements and keeps them from touching each other.
A machined brass cage is strong, stable at temperature, and unaffected by the oils and additives that age a polymer cage. It is what large bearings, high-speed bearings and heavily shocked bearings are supplied with.
Material Properties
Grade designation
machined cast or wrought brass, rolling-element or ring guided (suffix M, MA, MB or MP by maker)
Magnetic response
Non-magnetic
Service temperature
The cage itself is good well past the temperature at which the lubricant and the ring stabilization give out
Corrosion characteristic
Good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant
Service Limits
Brass is attacked by ammonia, so a brass-caged bearing has no place in an ammonia refrigeration plant. The machined cage also weighs more than a pressed or moulded one, which matters for acceleration and for the cage forces at very high speed.
Alternatives and When to Switch
Polyamide is lighter, quieter and cheaper for ordinary speeds and temperatures; pressed steel is the volume standard. Brass earns its cost where the cage forces or the temperature are genuinely beyond both.
Sizes of NATR Series Yoke Type Support Rollers Available in Machined Brass Cage
Designation
Bore d (mm)
Outer diameter D (mm)
Width C (mm)
NATR5
5
16
12
NATR6
6
19
12
NATR8
8
24
15
NATR10
10
30
15
NATR12
12
32
15
NATR15
15
35
19
NATR17
17
40
21
NATR20
20
47
25
NATR25
25
52
25
NATR30
30
62
29
NATR35
35
72
29
NATR40
40
80
32
Other ways to specify the NATR Series Yoke Type Support Rollers
Customize the parameters below — every spec field is editable, and the drawing redraws to match the values you choose. Changing the designation snaps the other fields to that size's standard values; you can then override any individual value.
Sends the selected values to the quote form below.
Our facility
Held in production, not just on paper
The tolerances above are decided on the grinding and superfinishing lines in our own plant, and gauged on every ring rather than on a sample. A dimension is only worth quoting if it survives the process that produces it.
Request a Quote
The form below follows the current technical drawing configuration. Change the drawing values above and the request details update automatically.
Dimensions & Specifications (DIN 5429 / ISO 1206)
Designation
Bore d (mm)
Outer diameter D (mm)
Width C (mm)
NATR5
5
16
12
NATR6
6
19
12
NATR8
8
24
15
NATR10
10
30
15
NATR12
12
32
15
NATR15
15
35
19
NATR17
17
40
21
NATR20
20
47
25
NATR25
25
52
25
NATR30
30
62
29
NATR35
35
72
29
NATR40
40
80
32
Video: Machined Brass Cage NATR Series Yoke Type Support Rollers
Third-party video, selected automatically for this topic. It is not produced by Bushing Bearings and is not a specification source — use the tables on this page for dimensional data.
Frequently Asked Questions
What should I use instead of Machined Brass Cage?
Polyamide is lighter, quieter and cheaper for ordinary speeds and temperatures; pressed steel is the volume standard. Brass earns its cost where the cage forces or the temperature are genuinely beyond both.
Does Machined Brass Cage change the dimensions or the rating?
The cage carries no load, so it changes no rating. What it changes is the operating envelope: the maximum temperature, the maximum speed, the tolerance of shock and vibration, the noise, and the compatibility with the lubricant. A bearing is very often limited by its cage long before its rings are in any danger, which is why the cage suffix in a designation is not a detail.
Does the cage affect the load rating?
No. The cage carries no load — it spaces the rolling elements and guides them. What it decides is the operating envelope: the temperature limit, the speed limit, the tolerance of shock and vibration, the noise, and the compatibility with the lubricant.
How do I know which cage a bearing has?
From the suffix in the designation. The conventions differ between makers, but a bearing without a cage suffix normally has the standard pressed steel cage, and the polyamide and machined brass alternatives are always marked. Where the cage matters to the duty, state it on the order rather than assuming.
How do I request a quotation?
Use the technical drawing on this page to pick the exact configuration, then submit it with the quote form. We respond within one business day.
Need a bearing quote or a spec sheet?Message our engineers on WhatsApp — send a drawing or DIN number and get pricing back fast.Start WhatsApp Chat →
This website uses only necessary and functional cookies to operate, secure, and improve basic website performance.
We do not use advertising cookies, Google Analytics, or cross-site tracking technologies.
