Machined Brass Cage K Series Needle Roller and Cage Assemblies
Temperature and speed limits, lubricant compatibility, and the bore range this cage is offered across.
Machined Brass Cage K Series Needle Roller and Cage Assemblies 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 is the cage, which spaces the rolling elements and keeps them from touching each other — specified for large bearings, high speed, heavy shock and vibration, and wherever temperature or lubricant rules out polyamide. On a k series needle roller and cage assemblies that matters because good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant. The property data, the comparison against the alternatives and the size table are below.
Why Machined Brass Cage for K Series Needle Roller and Cage Assemblies
Specified for large bearings, high speed, heavy shock and vibration, and wherever temperature or lubricant rules out polyamide. In a k series needle roller and cage assemblies 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 K Series Needle Roller and Cage Assemblies Available in Machined Brass Cage
Designation
Bore Fw (mm)
Outer diameter Ew (mm)
Width Bc (mm)
K8x11x8
8
11
8
K8x11x10
8
11
10
K8x12x10
8
12
10
K9x12x10
9
12
10
K10x13x10
10
13
10
K10x14x10
10
14
10
K10x14x13
10
14
13
K12x15x13
12
15
13
K12x16x13
12
16
13
K12x18x12
12
18
12
K14x18x13
14
18
13
K14x20x12
14
20
12
K15x19x13
15
19
13
K15x19x17
15
19
17
K15x21x15
15
21
15
K16x20x13
16
20
13
K16x22x12
16
22
12
K16x22x16
16
22
16
K17x21x13
17
21
13
K17x23x13
17
23
13
K18x22x17
18
22
17
K18x24x12
18
24
12
K18x24x13
18
24
13
K19x23x13
19
23
13
K19x23x17
19
23
17
K20x24x13
20
24
13
K20x26x12
20
26
12
K20x26x17
20
26
17
K20x28x16
20
28
16
K21x25x13
21
25
13
Other ways to specify the K Series Needle Roller and Cage Assemblies
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
Where these dimensions are actually made
Ring forging, heat treatment, raceway grinding and superfinishing all happen under one roof, so a bore tolerance and a clearance group are set by processes we control and can evidence, not by whichever supplier had stock.
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 (ISO 1206 / DIN 5405-1)
Designation
Bore Fw (mm)
Outer diameter Ew (mm)
Width Bc (mm)
K8x11x8
8
11
8
K8x11x10
8
11
10
K8x12x10
8
12
10
K9x12x10
9
12
10
K10x13x10
10
13
10
K10x14x10
10
14
10
K10x14x13
10
14
13
K12x15x13
12
15
13
K12x16x13
12
16
13
K12x18x12
12
18
12
K14x18x13
14
18
13
K14x20x12
14
20
12
K15x19x13
15
19
13
K15x19x17
15
19
17
K15x21x15
15
21
15
K16x20x13
16
20
13
K16x22x12
16
22
12
K16x22x16
16
22
16
K17x21x13
17
21
13
K17x23x13
17
23
13
K18x22x17
18
22
17
K18x24x12
18
24
12
K18x24x13
18
24
13
K19x23x13
19
23
13
K19x23x17
19
23
17
K20x24x13
20
24
13
K20x26x12
20
26
12
K20x26x17
20
26
17
K20x28x16
20
28
16
K21x25x13
21
25
13
K22x26x13
22
26
13
K22x28x17
22
28
17
K24x28x13
24
28
13
K24x30x17
24
30
17
K25x29x13
25
29
13
K25x30x17
25
30
17
K25x31x17
25
31
17
K25x33x24
25
33
24
K26x30x13
26
30
13
K28x33x17
28
33
17
K28x35x16
28
35
16
K30x35x13
30
35
13
K30x37x16
30
37
16
K30x40x18
30
40
18
K32x37x17
32
37
17
K32x39x16
32
39
16
K32x40x25
32
40
25
K35x40x17
35
40
17
K35x42x16
35
42
16
K35x42x20
35
42
20
K35x45x20
35
45
20
K37x42x17
37
42
17
K38x43x17
38
43
17
K40x45x17
40
45
17
K40x47x18
40
47
18
K40x48x20
40
48
20
K42x47x17
42
47
17
K42x50x20
42
50
20
K45x50x17
45
50
17
K45x52x18
45
52
18
K45x53x21
45
53
21
K47x52x17
47
52
17
K50x55x17
50
55
17
K50x57x18
50
57
18
K50x58x20
50
58
20
K55x60x20
55
60
20
K55x63x25
55
63
25
K60x65x20
60
65
20
K60x68x20
60
68
20
K60x68x25
60
68
25
K65x70x20
65
70
20
K65x73x23
65
73
23
K68x74x20
68
74
20
K70x76x20
70
76
20
K70x78x30
70
78
30
K75x81x20
75
81
20
K75x83x23
75
83
23
K80x86x20
80
86
20
K80x88x25
80
88
25
K85x92x20
85
92
20
K90x98x27
90
98
27
K95x103x30
95
103
30
K100x107x21
100
107
21
K100x108x30
100
108
30
Video: Machined Brass Cage K Series Needle Roller and Cage Assemblies
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 corrosion resistance does Machined Brass Cage give?
Corrosion behavior: good in most industrial environments; brass is attacked by ammonia, so it is not used in ammonia refrigeration plant.
Why is Machined Brass Cage used for this part?
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.
What are the limits of Machined Brass Cage?
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.
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.
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 →
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