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Miniature Bearings
Bearings Ball Bearings
Here at Bearingboys, we stock a wide range of very small ball bearings also know as miniature ball bearings. These miniature ball bearings are often used in power tools and remote controlled hobby toys, as well as in skateboards and roller blades. We stock open miniature ball bearings, which allow oil or grease to flow freely through the bearing for lubrication purposes; sealed and shielded miniature ball bearings, which prevent the entry of dust and preserve the lubricant. You can search our range by type, or by width, inside diameter or outside diameter. On request, Bearingboys can also supply various Abec precision bearings, including Abec 5, 6 & 9. If you are interested, please contact us.
Brand
Budget
Budget
Inside Dia
7mm
7mm
Outside Dia
22mm
22mm
Sealing
Sealed
Sealed
Width
7mm
7mm
Brand
Budget
Budget
Dynamic Load
631N
631N
Inside Dia
3.175mm = 1/8inch
3.175mm = 1/8inch
Open, Shielded or Sealed
Shielded
Shielded
Outside Dia
9.525mm = 3/8inch
9.525mm = 3/8inch
RPM Grease
40000
40000
RPM Oil
48000
48000
Sealing
Shielded
Shielded
Static Load
219N
219N
Width
3.97mm = 5/32inch
3.97mm = 5/32inch
Brand
Budget
Budget
Inside Dia
3.175mm = 1/8inch
3.175mm = 1/8inch
Outside Dia
12.7mm = 1/2inch
12.7mm = 1/2inch
Sealing
Shielded
Shielded
Width
4.365625mm = 11/64inch
4.365625mm = 11/64inch
Brand
Budget
Budget
Inside Dia
4.7625mm = 3/16inch
4.7625mm = 3/16inch
Outside Dia
7.9375mm = 5/16inch
7.9375mm = 5/16inch
Sealing
Shielded
Shielded
Width
3.175mm = 1/8inch
3.175mm = 1/8inch
Brand
Budget
Budget
Inside Dia
6.35mm = 1/4inch
6.35mm = 1/4inch
Outside Dia
9.525mm = 3/8inch
9.525mm = 3/8inch
Sealing
Shielded
Shielded
Width
3.175mm = 1/8inch
3.175mm = 1/8inch
Brand
Budget
Budget
Inside Dia
2mm
2mm
Outside Dia
5mm
5mm
Sealing
Open
Open
Width
1.5mm
1.5mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
9mm
9mm
Material
Standard bearing steel
Standard bearing steel
Material of rolling elements
Standard bearing steel
Standard bearing steel
Outside Dia
30mm
30mm
Sealing
Shielded
Shielded
Width
10mm
10mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
3mm
3mm
Material
Standard bearing steel
Standard bearing steel
Material of rolling elements
Standard bearing steel
Standard bearing steel
Outer ring
Without flange/groove
Without flange/groove
Outside Dia
6mm
6mm
Sealing
Shielded
Shielded
Temperature range
-20 to +120 °C
-20 to +120 °C
Tolerance class
Tolerance class P0/PN2 / ABEC 1
Tolerance class P0/PN2 / ABEC 1
Width
2.5mm
2.5mm
Brand
Budget
Budget
Inside Dia
9mm
9mm
Outside Dia
24mm
24mm
Sealing
Shielded
Shielded
Width
7mm
7mm
Brand
SKF
SKF
Inside Dia
5mm
5mm
Outside Dia
11mm
11mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
ZEN
ZEN
Inside Dia
3mm
3mm
Outside Dia
8mm
8mm
Sealing
Shielded
Shielded
Width
3mm
3mm
Brand
Budget
Budget
Inside Dia
4mm
4mm
Outside Dia
12mm
12mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
3mm
3mm
Outside Dia
10mm
10mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
4mm
4mm
Outside Dia
12mm
12mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
3mm
3mm
Outside Dia
10mm
10mm
Sealing
Open
Open
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
9mm
9mm
Outside Dia
24mm
24mm
Pack of
10
10
Sealing
Shielded
Shielded
Width
7mm
7mm
Brand
SKF
SKF
Inside Dia
7mm
7mm
Outside Dia
22mm
22mm
Sealing
Open
Open
Width
7mm
7mm
Brand
SKF
SKF
Inside Dia
6mm
6mm
Outside Dia
19mm
19mm
Sealing
Open
Open
Width
6mm
6mm
Brand
Budget
Budget
Inside Dia
8mm
8mm
Outside Dia
19mm
19mm
Pack of
1
1
Sealing
Open
Open
Width
6mm
6mm
Brand
Budget
Budget
Inside Dia
5mm
5mm
Outside Dia
11mm
11mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
3mm
3mm
Outside Dia
9mm
9mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
6.35mm = 1/4inch
6.35mm = 1/4inch
Outside Dia
12.7mm = 1/2inch
12.7mm = 1/2inch
Sealing
Open
Open
Width
3.175mm = 1/8inch
3.175mm = 1/8inch
Brand
Budget
Budget
Inside Dia
3mm
3mm
Outside Dia
7mm
7mm
Sealing
Open
Open
Width
2mm
2mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
5mm
5mm
Material
Standard bearing steel
Standard bearing steel
Material of rolling elements
Standard bearing steel
Standard bearing steel
Outside Dia
13mm
13mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
4mm
4mm
Material
Standard bearing steel
Standard bearing steel
Material of rolling elements
Standard bearing steel
Standard bearing steel
Outside Dia
7mm
7mm
Sealing
Shielded
Shielded
Width
2.5mm
2.5mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
7mm
7mm
Material
Stainless steel
Stainless steel
Material of rolling elements
Stainless steel
Stainless steel
Outside Dia
11mm
11mm
Sealing
Shielded
Shielded
Width
3mm
3mm
Brand
Budget
Budget
Inside Dia
3.175mm = 1/8inch
3.175mm = 1/8inch
Outside Dia
9.525mm = 3/8inch
9.525mm = 3/8inch
Sealing
Shielded
Shielded
Width
3.97mm = 5/32inch
3.97mm = 5/32inch
Brand
Budget
Budget
Inside Dia
7mm
7mm
Outside Dia
19mm
19mm
Pack of
10
10
Sealing
Shielded
Shielded
Width
6mm
6mm
Brand
SKF
SKF
Inside Dia
4mm
4mm
Outside Dia
16mm
16mm
Sealing
Sealed
Sealed
Width
5mm
5mm
Brand
SKF
SKF
Inside Dia
6mm
6mm
Outside Dia
19mm
19mm
Sealing
Shielded
Shielded
Width
6mm
6mm
Brand
SKF
SKF
Inside Dia
5mm
5mm
Outside Dia
19mm
19mm
Sealing
Shielded
Shielded
Width
6mm
6mm
Brand
Budget
Budget
Dynamic Load
284N
284N
Equivalent to
SR144-2Z
SR144-2Z
Inside Dia
3.175mm = 1/8inch
3.175mm = 1/8inch
Material
Stainless Steel
Stainless Steel
Open, Shielded or Sealed
Shielded
Shielded
Outside Dia
6.35mm = 1/4inch
6.35mm = 1/4inch
Sealing
Shielded
Shielded
Static Load
96N
96N
Width
2.779mm = 7/64inch
2.779mm = 7/64inch
Brand
Budget
Budget
Inside Dia
8mm
8mm
Outside Dia
19mm
19mm
Pack of
10
10
Sealing
Open
Open
Width
6mm
6mm
Brand
Budget
Budget
Inside Dia
5mm
5mm
Outside Dia
11mm
11mm
Pack of
10
10
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
9mm
9mm
Outside Dia
17mm
17mm
Sealing
Shielded
Shielded
Width
5mm
5mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
9mm
9mm
Material
Stainless steel
Stainless steel
Material of rolling elements
Stainless steel
Stainless steel
Outside Dia
24mm
24mm
Sealing
Shielded
Shielded
Width
7mm
7mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Slightly increased radial clearance
Slightly increased radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
4mm
4mm
Material
Stainless steel
Stainless steel
Material of rolling elements
Stainless steel
Stainless steel
Outside Dia
13mm
13mm
Sealing
Shielded
Shielded
Width
5mm
5mm
Brand
Budget
Budget
Inside Dia
2mm
2mm
Outside Dia
5mm
5mm
Sealing
Shielded (Flanged)
Shielded (Flanged)
Width
2.5mm
2.5mm
Brand
Budget
Budget
Inside Dia
9mm
9mm
Outside Dia
24mm
24mm
Sealing
Open
Open
Width
7mm
7mm
Brand
Budget
Budget
Inside Dia
5mm
5mm
Outside Dia
11mm
11mm
Pack of
10
10
Sealing
Shielded
Shielded
Width
5mm
5mm
Brand
Budget
Budget
Inside Dia
4mm
4mm
Outside Dia
11mm
11mm
Pack of
10
10
Sealing
Open
Open
Width
4mm
4mm
Brand
SKF
SKF
Inside Dia
3mm
3mm
Outside Dia
10mm
10mm
Sealing
Shielded
Shielded
Width
4mm
4mm
Brand
Budget
Budget
Inside Dia
3mm
3mm
Outside Dia
13mm
13mm
Sealing
Shielded
Shielded
Width
5mm
5mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
8mm
8mm
Material
Stainless steel
Stainless steel
Material of rolling elements
Stainless steel
Stainless steel
Outside Dia
16mm
16mm
Sealing
Shielded
Shielded
Width
5mm
5mm
Ball rows
Single row bearing
Single row bearing
Bore
Cylindrical bore
Cylindrical bore
Brand
ZEN
ZEN
Cage
Sheet steel cage
Sheet steel cage
Clearance
Normal radial clearance
Normal radial clearance
Current insulation
No current insulation
No current insulation
Inside Dia
8mm
8mm
Material
Standard bearing steel
Standard bearing steel
Material of rolling elements
Standard bearing steel
Standard bearing steel
Outer ring
Without flange/groove
Without flange/groove
Outside Dia
12mm
12mm
Sealing
Open
Open
Temperature range
-20 to +120 °C
-20 to +120 °C
Tolerance class
Tolerance class P0/PN2 / ABEC 1
Tolerance class P0/PN2 / ABEC 1
Width
2.5mm
2.5mm
Brand
Budget
Budget
Inside Dia
1.5mm
1.5mm
Outside Dia
4mm
4mm
Sealing
Open (Flanged)
Open (Flanged)
Width
1.2mm
1.2mm
Brand
Budget
Budget
Inside Dia
1.5mm
1.5mm
Outside Dia
5mm
5mm
Sealing
Open (Flanged)
Open (Flanged)
Width
2mm
2mm
Brand
Budget
Budget
Inside Dia
1.5mm
1.5mm
Outside Dia
6mm
6mm
Sealing
Shielded (Flanged)
Shielded (Flanged)
Width
3mm
3mm
Brand
Budget
Budget
Inside Dia
6mm
6mm
Outside Dia
15mm
15mm
Pack Size
10
10
Sealing
Open
Open
Width
5mm
5mm
Brand
Budget
Budget
Inside Dia
25.4mm = 1inch
25.4mm = 1inch
Outside Dia
50.8mm = 2inch
50.8mm = 2inch
Sealing
Shielded
Shielded
Width
12.7mm = 1/2inch
12.7mm = 1/2inch