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SKF Square 4 Bolt Bearings FY, FYJ
Bearings Housed & Flanged Bearings SKF Housed Bearings
View our extensive range of SKF square flange mounted ball bearings featuring cast iron housings with square flanges and various locking methods. Suitable for high speed, high temperature applications with heavy loads. We stock popular sizes from 30mm to 100mm bore, in metric and imperial dimensions. Housings accept standard SKF insert bearings and allow for relubrication. Select from models with grub screws, eccentric collars, and adapter sleeves to meet your locking needs. All units in stock for immediate dispatch.
Bolt Hole Centres (J)
4.13inch (105mm)
4.13inch (105mm)
Bore Size (d)
1.5/8inch (41.275mm)
1.5/8inch (41.275mm)
Length/Width (L)
5.39inch (137mm)
5.39inch (137mm)
Limiting Speed
4300r/min
4300r/min
Overall Height with Bearing (T)
2.13inch (54.2mm)
2.13inch (54.2mm)
Bolt Hole Centres (J)
3.62inch (92mm)
3.62inch (92mm)
Bore Size (d)
1.5/16inch (33.338mm)
1.5/16inch (33.338mm)
Length/Width (L)
4.65inch (118mm)
4.65inch (118mm)
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
1.83inch (46.4mm)
1.83inch (46.4mm)
Bolt Hole Centres (J)
111mm
111mm
Bolt Hole Dia (N)
18mm
18mm
Bore Size (d)
50mm
50mm
Length/Width (L)
143mm
143mm
Limiting Speed
4000r/min
4000r/min
Overall Height with Bearing (T)
66.1mm
66.1mm
Bolt Hole Centres (J)
143mm
143mm
Bolt Hole Dia (N)
18mm
18mm
Bore Size (d)
60mm
60mm
Length/Width (L)
175mm
175mm
Limiting Speed
3400r/min
3400r/min
Overall Height with Bearing (T)
80.8mm
80.8mm
Bolt Hole Centres (J)
105mm
105mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
40mm
40mm
Length/Width (L)
137mm
137mm
Limiting Speed
4300r/min
4300r/min
Overall Height with Bearing (T)
50.5mm
50.5mm
Bolt Hole Centres (J)
149mm
149mm
Bolt Hole Dia (N)
19mm
19mm
Bore Size (d)
65mm
65mm
Length/Width (L)
187mm
187mm
Limiting Speed
3000r/min
3000r/min
Overall Height with Bearing (T)
72.9mm
72.9mm
Bolt Hole Centres (J)
3.62inch (92mm)
3.62inch (92mm)
Bore Size (d)
1.1/4inch (31.75mm)
1.1/4inch (31.75mm)
Length/Width (L)
4.65inch (118mm)
4.65inch (118mm)
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
2.10inch (53.3mm)
2.10inch (53.3mm)
Bolt Hole Centres (J)
105mm
105mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
45mm
45mm
Length/Width (L)
137mm
137mm
Limiting Speed
4300r/min
4300r/min
Overall Height with Bearing (T)
58.9mm
58.9mm
Bolt Hole Centres (J)
130mm
130mm
Bolt Hole Dia (N)
18mm
18mm
Bore Size (d)
55mm
55mm
Length/Width (L)
162mm
162mm
Limiting Speed
3600r/min
3600r/min
Overall Height with Bearing (T)
74.6mm
74.6mm
Bolt Hole Centres (J)
3.25inch (82.5mm)
3.25inch (82.5mm)
Bore Size (d)
1.1/8inch (28.575mm)
1.1/8inch (28.575mm)
Length/Width (L)
4.25inch (108mm)
4.25inch (108mm)
Limiting Speed
6300r/min
6300r/min
Overall Height with Bearing (T)
1.84inch (46.7mm)
1.84inch (46.7mm)
Bolt Hole Centres (J)
2.13inch (54mm)
2.13inch (54mm)
Bore Size (d)
5/8inch (15.875mm)
5/8inch (15.875mm)
Length/Width (L)
3.00inch (76.2mm)
3.00inch (76.2mm)
Limiting Speed
9500r/min
9500r/min
Overall Height with Bearing (T)
1.20inch (30.6mm)
1.20inch (30.6mm)
Bolt Hole Centres (J)
92mm
92mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
35mm
35mm
Length/Width (L)
118mm
118mm
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
53.3mm
53.3mm
Bolt Hole Centres (J)
4.37inch (111mm)
4.37inch (111mm)
Bore Size (d)
1.15/16inch (49.213mm)
1.15/16inch (49.213mm)
Length/Width (L)
5.63inch (143mm)
5.63inch (143mm)
Limiting Speed
4000r/min
4000r/min
Overall Height with Bearing (T)
2.39inch (60.7mm)
2.39inch (60.7mm)
Bolt Hole Centres (J)
5.12inch (130mm)
5.12inch (130mm)
Bore Size (d)
2inch (50.8mm)
2inch (50.8mm)
Length/Width (L)
6.38inch (162mm)
6.38inch (162mm)
Limiting Speed
3600r/min
3600r/min
Overall Height with Bearing (T)
2.65inch (67.4mm)
2.65inch (67.4mm)
Bolt Hole Centres (J)
2.76inch (70mm)
2.76inch (70mm)
Bore Size (d)
7/8inch (22.225mm)
7/8inch (22.225mm)
Length/Width (L)
3.74inch (95mm)
3.74inch (95mm)
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
1.67inch (42.5mm)
1.67inch (42.5mm)
Bolt Hole Centres (J)
70mm
70mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
25mm
25mm
Length/Width (L)
95mm
95mm
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
45.6mm
45.6mm
Bolt Hole Centres (J)
70mm
70mm
Bolt Hole Dia (N)
12mm
12mm
Bore Size (d)
20mm
20mm
Length/Width (L)
95mm
95mm
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
36mm
36mm
Bolt Hole Centres (J)
5.89inch (149.5mm)
5.89inch (149.5mm)
Bore Size (d)
2.11/16inch (68.263mm)
2.11/16inch (68.263mm)
Length/Width (L)
7.36inch (187mm)
7.36inch (187mm)
Limiting Speed
3000r/min
3000r/min
Overall Height with Bearing (T)
2.85inch (72.4mm)
2.85inch (72.4mm)
Bolt Hole Centres (J)
2.76inch (70mm)
2.76inch (70mm)
Bore Size (d)
15/16inch (23.813mm)
15/16inch (23.813mm)
Length/Width (L)
3.74inch (95mm)
3.74inch (95mm)
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
1.53inch (38.8mm)
1.53inch (38.8mm)
Bolt Hole Centres (J)
105mm
105mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
45mm
45mm
Length/Width (L)
137mm
137mm
Limiting Speed
2400r/min
2400r/min
Overall Height with Bearing (T)
54.2mm
54.2mm
Bolt Hole Centres (J)
5.63inch (143mm)
5.63inch (143mm)
Bore Size (d)
2.1/4inch (57.15mm)
2.1/4inch (57.15mm)
Length/Width (L)
6.89inch (175mm)
6.89inch (175mm)
Limiting Speed
3400r/min
3400r/min
Overall Height with Bearing (T)
2.90inch (73.7mm)
2.90inch (73.7mm)
Bolt Hole Centres (J)
5.12inch (130mm)
5.12inch (130mm)
Bore Size (d)
2.3/16inch (55.563mm)
2.3/16inch (55.563mm)
Length/Width (L)
6.38inch (162mm)
6.38inch (162mm)
Limiting Speed
3600r/min
3600r/min
Overall Height with Bearing (T)
2.54inch (64.4mm)
2.54inch (64.4mm)
Bolt Hole Centres (J)
111mm
111mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
45mm
45mm
Length/Width (L)
143mm
143mm
Limiting Speed
4000r/min
4000r/min
Overall Height with Bearing (T)
52.5mm
52.5mm
Bolt Hole Centres (J)
143mm
143mm
Bolt Hole Dia (N)
19mm
19mm
Bore Size (d)
55mm
55mm
Length/Width (L)
175mm
175mm
Limiting Speed
3400r/min
3400r/min
Overall Height with Bearing (T)
63.3mm
63.3mm
Bolt Hole Centres (J)
3.25inch (82.5mm)
3.25inch (82.5mm)
Bore Size (d)
1.1/16inch (26.9875mm)
1.1/16inch (26.9875mm)
Length/Width (L)
4.25inch (108mm)
4.25inch (108mm)
Limiting Speed
6300r/min
6300r/min
Overall Height with Bearing (T)
1.66inch (42.2mm)
1.66inch (42.2mm)
Bolt Hole Centres (J)
3.25inch (82.5mm)
3.25inch (82.5mm)
Bore Size (d)
1.3/16inch (30.163mm)
1.3/16inch (30.163mm)
Length/Width (L)
4.25inch (108mm)
4.25inch (108mm)
Limiting Speed
6300r/min
6300r/min
Overall Height with Bearing (T)
1.66inch (42.2mm)
1.66inch (42.2mm)
Bolt Hole Centres (J)
3.62inch (92mm)
3.62inch (92mm)
Bore Size (d)
1.3/8inch (34.925mm)
1.3/8inch (34.925mm)
Length/Width (L)
4.65inch (118mm)
4.65inch (118mm)
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
1.83inch (46.4mm)
1.83inch (46.4mm)
Bolt Hole Centres (J)
4.00inch (101.5mm)
4.00inch (101.5mm)
Bore Size (d)
1.1/2inch (38.1mm)
1.1/2inch (38.1mm)
Length/Width (L)
5.12inch (130mm)
5.12inch (130mm)
Limiting Speed
4800r/min
4800r/min
Overall Height with Bearing (T)
2.13inch (54.2mm)
2.13inch (54.2mm)
Bolt Hole Centres (J)
102mm
102mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
40mm
40mm
Length/Width (L)
130mm
130mm
Limiting Speed
4800r/min
4800r/min
Overall Height with Bearing (T)
51.2mm
51.2mm
Bolt Hole Centres (J)
92mm
92mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
35mm
35mm
Length/Width (L)
118mm
118mm
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
44.4mm
44.4mm
Bolt Hole Centres (J)
92mm
92mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
35mm
35mm
Length/Width (L)
118mm
118mm
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
50.4mm
50.4mm
Bolt Hole Centres (J)
4.37inch (111mm)
4.37inch (111mm)
Bore Size (d)
1.15/16inch (49.213mm)
1.15/16inch (49.213mm)
Length/Width (L)
5.63inch (143mm)
5.63inch (143mm)
Limiting Speed
4000r/min
4000r/min
Overall Height with Bearing (T)
2.39inch (60.6mm)
2.39inch (60.6mm)
Bolt Hole Centres (J)
92mm
92mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
30mm
30mm
Length/Width (L)
118mm
118mm
Limiting Speed
5300r/min
5300r/min
Overall Height with Bearing (T)
43.3mm
43.3mm
Bolt Hole Centres (J)
63.5mm
63.5mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
20mm
20mm
Length/Width (L)
86mm
86mm
Overall Height with Bearing (T)
42.5mm
42.5mm
Bolt Hole Centres (J)
111mm
111mm
Bolt Hole Dia (N)
18mm
18mm
Bore Size (d)
50mm
50mm
Length/Width (L)
143mm
143mm
Limiting Speed
4000r/min
4000r/min
Overall Height with Bearing (T)
60.6mm
60.6mm
Bolt Hole Centres (J)
92mm
92mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
35mm
35mm
Length/Width (L)
118mm
118mm
Limiting Speed
3200r/min
3200r/min
Overall Height with Bearing (T)
46.4mm
46.4mm
Bolt Hole Centres (J)
63.5mm
63.5mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
20mm
20mm
Length/Width (L)
86mm
86mm
Limiting Speed
8500r/min
8500r/min
Overall Height with Bearing (T)
37.3mm
37.3mm
Bolt Hole Centres (J)
63.5mm
63.5mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
20mm
20mm
Length/Width (L)
86mm
86mm
Limiting Speed
5000r/min
5000r/min
Overall Height with Bearing (T)
33.3mm
33.3mm
Bolt Hole Centres (J)
152mm
152mm
Bolt Hole Dia (N)
19mm
19mm
Bore Size (d)
70mm
70mm
Length/Width (L)
193mm
193mm
Limiting Speed
2800r/min
2800r/min
Overall Height with Bearing (T)
70.7mm
70.7mm
Bolt Hole Centres (J)
101.5mm
101.5mm
Bolt Hole Dia (N)
14mm
14mm
Bore Size (d)
40mm
40mm
Length/Width (L)
130mm
130mm
Limiting Speed
4800r/min
4800r/min
Overall Height with Bearing (T)
54.2mm
54.2mm
Bolt Hole Centres (J)
70mm
70mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
25mm
25mm
Length/Width (L)
95mm
95mm
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
42.5mm
42.5mm
Bolt Hole Centres (J)
82.5mm
82.5mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
30mm
30mm
Length/Width (L)
108mm
108mm
Limiting Speed
6300r/min
6300r/min
Overall Height with Bearing (T)
42.2mm
42.2mm
Bolt Hole Centres (J)
105mm
105mm
Bolt Hole Dia (N)
16mm
16mm
Bore Size (d)
45mm
45mm
Length/Width (L)
137mm
137mm
Limiting Speed
4300r/min
4300r/min
Overall Height with Bearing (T)
54.2mm
54.2mm
Bolt Hole Centres (J)
70mm
70mm
Bolt Hole Dia (N)
11.5mm
11.5mm
Bore Size (d)
25mm
25mm
Length/Width (L)
95mm
95mm
Limiting Speed
7000r/min
7000r/min
Overall Height with Bearing (T)
38.8mm
38.8mm
Bolt Hole Centres (J)
143mm
143mm
Bolt Hole Dia (N)
18mm
18mm
Bore Size (d)
60mm
60mm
Length/Width (L)
175mm
175mm
Limiting Speed
3400r/min
3400r/min
Overall Height with Bearing (T)
73.7mm
73.7mm
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