Author Topic: b31 crankshaft bearings  (Read 167 times)

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EDDIE SIMPSON

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b31 crankshaft bearings
« on: 14 September, 2020, 20:32:41 »
 the original b31 crankshaft bearings are now superseeded by SKF , NGK,  and others. but i m unsure as to whether i need c3 or cn tolerances with any of the three bearings. i ve also seen MRJA bearings the same sizes [ 1 1/8 and 7/8 ] but which suffix is correct? any recommendations?

Pete C

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Re: b31 crankshaft bearings
« Reply #1 on: 15 September, 2020, 06:13:38 »
get in touch with Darren Wrudd. He runs a bearing company and has been very helpful in supplying quality bearings to me and many others.



John Fenwick Rossendale Ltd
Unit 3 Vine Grove Works Carrs Industrial Estate,
Commerce Street
Haslingden
Rossendale Lancashire BB4 5JT


john-fenwick@btconnect.com

Calum

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Re: b31 crankshaft bearings
« Reply #2 on: 15 September, 2020, 16:16:53 »
get in touch with Darren Wrudd. He runs a bearing company and has been very helpful in supplying quality bearings to me and many others.



John Fenwick Rossendale Ltd
Unit 3 Vine Grove Works Carrs Industrial Estate,
Commerce Street
Haslingden
Rossendale Lancashire BB4 5JT


john-fenwick@btconnect.com

And a 'Wrudd'y good firm they are too... local to me. Have dealt with them many times for various projects at home and at work and they've always been very helpful indeed.

EDDIE SIMPSON

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Re: b31 crankshaft bearings
« Reply #3 on: 24 September, 2020, 22:04:43 »
hello. darren is the MAN . he sorted out the bearings for me.
for the record they are
6203 2RSR C3
MRJA7/8 C3
NF305W C3
and beware of fakes on the internet.